1
Report of the FEI Veterinary and Dressage
Committees' Workshop
The use of over bending (“Rollkur”) in FEI
Competition
31 January 2006 during the FEI Veterinary
Committee meeting at the Olympic Museum,
Lausanne.
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CONTENTS
Page No.
1. Executive Summary 3
2. Report of the Scientific Session 4
3. Synopsis of the Discussion 10
4. Recommendations and Conclusions from the Workshop 12
5. Acknowledgements
12
List of Appendices:
1. Preliminary Report of the Welfare Subcommittee on the use
of “Rollkur” as a training method for Dressage horses to the
Veterinary Committee 14
2. Workshop Programme on 31 January 2006 16
3. Delegates in attendance at the Workshop 17
4. Abstracts of the scientific presentations made at the Workshop 19
5. Comments received subsequent to the Workshop 31
6. FEI Press Release issued by Muriel Faienza on 31 Jan'06 33
Report dated 26 February 2006.
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1. Executive Summary
1. A meeting of 50 invited representatives from all aspects of international
dressage and equestrian sport was organised by the FEI Veterinary and
Dressage Committees to review the training technique that has become
known as "Rollkur".
2. It was agreed that a suitable form of words must be found to better
describe "Rollkur-like" techniques as tools used in the training of horses for
dressage and other disciplines.
3. The Workshop considered the term "hyperflexion" and the following
working definition was agreed:
"Hyperflexion of the neck is a technique of working/training to provide a
degree of longitudinal flexion of the mid-region of the neck that cannot be
self-maintained by the horse for a prolonged time without welfare
implications.”
"There must be an understanding that hyperflexion as a training aid must
be used correctly, as the technique can be an abuse when attempted by
an inexperienced/unskilled rider/trainer."
4. Both the term “hyperflexion” and the working definition need further work
by the Dressage and Veterinary Committees to refine the wording, taking
into account the comments and opinions of those present at the Workshop.
5. Delegates were unanimous in their agreement that horses must not be seen
to be put under pressure by this or any other training techniques. At all
times there must be a clear understanding and proper application of such
training tools by riders and trainers, and the welfare of the horse must
remain paramount.
6. Evidence presented at the Workshop indicated that in experienced hands
there was no apparent abuse, improper welfare or clinical side effects
associated from the use of hyperflexion. However, if not practiced
correctly, there are serious concerns for welfare and possible clinical injury
that will affect a horse's well-being and performance.
7. The meeting agreed that ground rules are urgently required so that
Stewards can be briefed to take action and prevent abuse of the technique
in all disciplines.
8. The Veterinary Committee should now identify what research is required to
confirm unequivocally whether or not there is a welfare issue involved in
training techniques using hyperflexion.
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2. REPORT OF THE SCIENTIFIC SESSION
2.1. INTRODUCTION by the Chairman, Professor Leo Jeffcott
In his introduction, Professor Jeffcott, Chairman of the FEI Veterinary Committee and
Convenor of the Workshop, welcomed all present and particularly thanked Mrs Mariette
Withages, Chairman of the FEI Dressage Committee, for her close involvement with the
programme. He said he was pleased to see so many international speakers and experts
including distinguished judges, stewards, riders and trainers. Although this was a closed
meeting, he added that he was very happy to welcome key representatives of the
specialised equestrian press, together with members of the Veterinary, Dressage, Media
Advisory Committees and the Welfare Sub-Committee.
The Chairman explained that over a period of time there had been considerable
controversy in the media over the use of the training technique that had recently become
known as “Rollkur” (or, erroneously called “over-bending”). Some riders, other
knowledgeable experts in equestrian sport, including dressage, and members of the public
considered the technique unnecessary, offensive to the viewer and, importantly, a
potential welfare issue to the horse. The FEI had received complaints and it had therefore
been decided to arrange a Workshop to investigate thoroughly the issues surrounding the
use of the technique.
The Chairman outlined his aims for the meeting as follows:
• review current training techniques;
• identify any welfare implications;
• establish a list of “Pros” and “Cons”;
• better understand the biomechanics and kinematics of neck movement in the horse;
• identify any clinical side effects of long term use;
• consider areas of research for which further scientific evidence was needed;
• prepare a report to the FEI on the way forward.
The Chairman explained that his role was impartial. He emphasised that the audience
were the experts; they should listen to the evidence of the speakers, following which he
would seek maximum participation in the discussion. The Rapporteurs would then prepare
a Summary of the day’s proceedings for submission to the FEI.
2.2. AN INTRODUCTION FROM THE WELFARE PERSPECTIVE 1
Dr Andrew Higgins, Chairman FEI Welfare Sub-Committee
Dr. Higgins explained that the Welfare Sub-Committee had been established by the FEI in
2004 to promote the health and welfare of sport horses competing in the FEI disciplines
and reports to the Veterinary and Ethics Committees. In June 2005 the Welfare Sub-
Committee was asked by the Chairman of the Veterinary Committee to examine the
possible welfare implications of the use of “Rollkur” as a training technique. He referred to
the FEI Code of Conduct, which requires those involved with international equestrian sport
to ensure that at all times the welfare of the horse remains paramount and which prohibits
any training methods which are abusive or cause fear or for which the horse has not been
properly trained.
1 The Abstracts for each of the papers presented can be found in the Appendix.
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In examining the use of “Rollkur” the Welfare Sub-Committee had sought the advice of a
number of experts in the field and reviewed the available evidence. The following
preliminary findings were presented:
• There is (at least) a perceived welfare issue to be addressed;
• Although there appears to be a lack of reliable scientific or veterinary evidence that
the technique causes lasting damage to a horse, there should be a thorough review
of any effects the technique may have on the musculoskeletal, psychological and
physiological systems;
• It seems that there is a serious welfare risk that less experienced riders, often at
locations outside the FEI’s jurisdiction, may imitate more skilful riders in attempting
to use the technique;
• Within the FEI’s jurisdiction, e.g., in warm up areas, the FEI through the Dressage
Committee and others should seek to supervise the use of the technique, probably
by upgrading the training of stewards;
• The FEI should keep riders, trainers and the general public informed of its concerns
and of the actions it is taking to assess any demonstrated welfare issues and to
address abuses.
2.3. EQUITATION AND LEARNING THEORY – POSITIVE AND NEGATIVE
REINFORCEMENT
Dr Andrew McLean, Dr Paul McGreevy & Professor Leo Jeffcott, Australian Equine
Behaviour Centre, 730 Clonbinane Road, Broadford, VIC 3658, & Faculty of Veterinary
Science, University of Sydney, NSW 2006, Australia.
Dr. McLean opened his presentation by defining “Rollkur” as a technique of
working/training horses to produce a degree of cervical flexion that cannot be selfmaintained
by the horse for any length of time. He compared classical training with
operant conditioning which is used in most training systems. The former made
responses more likely in the future but the latter, which relied on reinforcement and
punishment, made them less likely. He discussed positive and negative reinforcement
– positive reinforcement involved the addition of a primary reinforcer while negative
reinforcement relied on the immediate release of pressure as an instantaneous reward.
Failure to release such pressure could cause conflict in the horse and “learned
helplessness”, which he described as a state of learned pain tolerance when, for
example, a horse’s head was held on its chest and it had no way of relieving the
position. Over-bending did, in fact, occur in nature but only for brief periods at a time.
In equestrianism, problems arose through incorrect use of pressure that was applied
for too long. Dr. McLean said he considered that research could help remove
emotiveness from the debate by establishing, for a range of equine athletes, how much
contact was neutral, how much rein tension was too much, how contact discomfort and
pain could be measured and how learned helplessness manifested itself in horses. Dr.
McLean concluded by asking whether there could be good and bad “Rollkur” and
whether a self-carriage test might be used to distinguish between them?
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2.4. THE TRAINER’S VIEW ON OVER-BENDING (“ROLLKUR”) AS A TRAINING
AID FOR DRESSAGE COMPETITION
Mr. Sjef Janssen, Dressage Trainer, Tack Factory, Erp, The Netherlands
Mr. Janssen explained the basic philosophy of his training methods, which he illustrated,
with a series of photographs. The message he particularly wished to project was his use
of low, deep and round (LDR) as just one of the many tools in his system of successful
training. Mr. Janssen reviewed the centuries-long history of this type of training which
was now used in virtually all disciplines. He emphasised many aspects of his techniques
including daily work and relaxation regimes. Daily routine included warm up, which he
considers essential, transitions, specific movements and short spells of LDR followed by
relaxation. Rewards were given following all satisfactory movements. Total relaxation, on
a daily basis, included periods loose in the field or hand walking, normally twice daily
weather permitting, hacking to cool down after training, occasional sessions on the horse
walker and plenty of good mental relaxation. Regular contact with people was important
and routine veterinary examinations took place at 6-weekly intervals and with other
professionals as necessary.
Horses were always given plenty of time to develop and no serious high-level training was
introduced before a horse was 5–6 years old. LDR was introduced slowly over a period of
time. Mr. Janssen said he considered the benefits of LDR as good physical and mental
connection with the horse ensuring full fitness and mental adaptation. The disadvantages
could be the copying of the techniques by unskilled trainers and riders who were
unfamiliar with the practices involved.
Mr. Janssen concluded that there was confusion in the dressage world between LDR
training, involving short periods of extreme flexion alternated with extension of the neck,
and what had become known as “Rollkur”, which was flexion maintained over a relatively
long period of time. LDR was a useful tool in skilled hands but was not to be seen as a
role model for all.
2.5 FUNCTIONAL ANATOMY OF THE HORSE AS IT RELATES TO OVER-BENDING
(“ROLLKUR”)
Dr. Gerd Heuschmann, Tierärztiliche Praxis fur Pferde, Warendorf, Germany
Dr. Heuschmann explained that “Classical Dressage” schooling was necessary to obtain
correct future performance. The training took 1.5-2 years to achieve its objective and
could not be rushed. “Rollkur” contained an aggressive component that could have a
negative effect on a horse’s movement compared to the acceptable and well-proven Low
Deep and Round (LDR). With a neck too high too young, there would be little true muscle
development which could lead, for example, to the inability of the hind leg to follow
through and parallel the extended fore leg. Young horses should always be ridden with a
forward and downward neck, which would produce a relaxed musculoskeletal system and
a well developed “long back muscle”. Tension was the enemy of positive training and
abuse of draw reins was a notable cause of tension - hence each muscle must have a
chance to relax after it has been “charged”.
Dr. Heuschmann said that he considered that in to-day’s competition arena instead of
demonstrating the correctness of basic gaits some, including judges, were more interested
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in rewarding the “wow” factor. His main concern was for the horses’ welfare and in his
view a tense athlete was not a happy athlete.
2.6. RADIOLOGICAL ASPECTS OF THE CERVICAL REGION IN RELATION TO
OVER-BENDING (ROLLKUR)
Dr. Emile Welling, Blaricum, The Netherlands
Dr. Welling said that as a veterinary clinician he could not attribute specific lesions in
horses to “round and deep” “Rollkur-like” training. He found a huge variation in
radiological findings in different types of horses subject to a variation of training methods
and not just in sports horses. Moreover, calcification and exostoses at the attachment of
the ligamentum nuchae to the nuchal crest of the occipital bone was common in a great
diversity of horses. However, pain in the cervical region was not as common as back or
limb pain.
Dr. Welling illustrated his presentation with many radiographs, including those of two top
Grand Prix dressage horses trained using “Rollkur-like” methods and which were now well
into retirement, but whose radiographs showed no lesions whatsoever. Dr Welling posed
the question: “Is Rollkur really dangerous to the physical status and welfare of the horse?”
He thought not.
2.7. SCHOOLING PRINCIPLES AND WELFARE – THE SITUATION OF “ROLLKUR”
IN THIS CONTEXT
Professor Frank Ődberg, Faculty of Veterinary Medicine, Ghent University, Belgium
Professor Ődberg considered that it would be wrong just to focus on the technique of socalled
“Rollkur” but rather on the wider general philosophy of schooling, much of which
may be deleterious to a horse’s welfare. He warned against being too reliant on
photographic images of abuses which could be misleading as the split second timing of a
photograph could show an image that was in total contrast to one taken immediately
before or after.
Professor Ődberg explored classical schooling principles throughout history, some of which
had less emphasis on equine welfare. He posed the question - can “Rollkur” be applied in
an animal-friendly way by knowledgeable people and, if so, is its purpose useful or
counter-productive? He also questioned whether coercive riding affected wastage? In
Germany, for example, he said that the average age of horses slaughtered was 8 – 10
years old. He wondered how much of this early wastage was due to coercive riding of
young stock? He also spoke of the need to reward horses when they showed good
responses to aids and not to repeat them once the desired response had been achieved.
Children developed through partaking in different sports – horses also developed through
a variety of training exercises. He concluded by describing dressage as an art and
appealed for more equitation science; such research would require money, the potential
sources of which need to be identified. The emphasis on the research itself should focus
on seeking more respect for “lightness” both in competition and in training in all
disciplines. We must also train judges.
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2.8. FUNCTIONAL ANATOMY AND DIAGNOSTIC IMAGING OF THE CERVICAL
SPINE
Professor Jean-Marie Denoix, Ecole Nationale Veterinaire d’Alfort, France
Professor Denoix explained that the neck was critical in all disciplines and the proximity of
joints to nerves indicated a potential cause of neck and gait problems. He described the
functional anatomy of the nuchal ligament and cervical muscles and reported on flexion
studies on the neck and the effects these had on the spine caused by the narrowing of
vertebral canal with flexion, and narrowing of the intervertebral foramen with extension.
Lateral flexion of the neck could be used as an indicator of neck injury.
He described the clinical manifestations of neck pain and its diagnosis and pointed out that
a rider was often totally unaware of any injury to the horse. Hyperflexion or over-bending
of the neck would cause stresses in the intervertebral discs, in the nuchal area and in the
withers. Such extreme movements would not necessarily cause primary lesions but may
cause pain in horses with pre-existing conditions. In all aspects the main danger was
misuse of the aids. Professor Denoix concluded by stating that ultrasound was very
sensitive to bone surface abnormalities such as hypertrophy or fragmentation of the
articular processes and was therefore particularly useful for the treatment of cervical
problems.
2.9. THE EFFECT OF DIFFERENT HEAD AND NECK POSITIONS ON THE
THORACOLUMBAR KINEMATICS IN THE UNRIDDEN HORSE
Professor P.R. van Weeren, H. Meyer, C. Johnston, L. Roepstorff, M. A. Weishaupt,
Department of Equine Sciences, Utrecht University, The Netherlands.
Professor van Weeren opened his presentation on behalf of his collaborators in Uppsala,
Utrecht and Zurich by providing a theoretical and historical background to back
biomechanics (“bow and string” concept). In many equestrian activities a specific position
of the head and/or neck was required that was dissimilar to the natural position. Much
controversy existed on the impact of these positions, but no quantitative data was
available. The Zürich/Uppsala/Utrecht joint project had been motivated by Professor Heinz
Meyer, and aimed to study the influence of the horse’s head and neck positions on motion,
the forces through the hooves to the ground and to examine ways to improve training and
therapy.
Professor van Weeren quantified the effect of 5 different positions on thoracolumbar
kinematics of the horse and noted that position 4 (= head and neck lowered with nose
behind the vertical) affected normal locomotion with a decrease in stride length and
increase in range of motion (elasticity). This lent credibility to the fact that the position
could be of value in training depending on by whom and how it was applied. In contrast,
other extreme positions tended to have negative effects on various body regions, could
greatly disturb normal kinematics and could slow the natural speed of the horse.
Professor van Weeren called for further research to obtain a more comprehensive picture
of competition horse biomechanics and the potential for the use of a combination of
measurement techniques with ethology.
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2.10. EXERCISE PHYSIOLOGICAL ASPECTS OF OVERBENDING (ROLLKUR)
Professor Eric van Breda, Masstricht University, The Netherlands
Professor van Breda said he believed that the primary goal of equine athletic training was
to enhance performance and maintain health and well-being. There was a fine line
between training and over-training and the aim must be to find the optimum balance
between the two. Variation in training techniques was necessary to prevent horses
becoming over-trained and to keep the equine athlete calm, relaxed and happy.
A recent study had compared post-training stress between elite horses in which an
unnatural head/neck position (“Rollkur”) had been used and a recreational horse in which
such technique was not commonly used; stress was less in the elite horses suggesting that
the health and well-being of top competition horses can be maintained despite non-natural
biomechanical positions. Professor van Breda concluded that, based on his research, overbending
did not induce stress nor pose a serious threat to the well-being of horses in
skilled hands. He did, however, call for a multi-disciplined approach to more research.
2.11. RESEARCH TECHNIQUES FOR STUDYING OVER-BENDING (ROLLKUR)
Professor Hilary Clayton, McPhail Equine Performance Center, Michigan State University,USA
Professor Clayton advised that the neck is one of the most mobile parts of the horse’s
body. She had studied maximum flexion and extension in the neck of dead horses and
showed huge motion in the region of the pole and at the base of the neck. Using
fluoroscopy she had scanned the neck and measured the angles between the cervical
vertebrae in different positions. This technique could also be used to evaluate patency of
the airways. She called for a clear definition of what was over-bending and what it was
not? Extreme flexion took place in the middle part of the neck. While it was difficult to
monitor back motion during ridden exercise, due to the presence of the saddle, she
described the use of ShapeTape, a fibreoptic based sensor, which can not only monitor
back motion but can be combined to correlate this with movements of the limbs.
Professor Clayton reiterated the opinion of others that over-bending was employed as a
training technique in a wide range of sports horses and that there was considerable scope
for relevant applied research.
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3. Synopsis of the Discussion
An enthusiastic and constructive debate took place and questions and points were raised
by all representative organisations present at the Workshop.
3.1. Definition of the training technique of so-called "Rollkur"
The initial discussion focused on the need to clarify what was meant by the term “Rollkur”,
which had connotations of potential abuse, and to separate its association from
hyperflexion, which the Workshop accepted as a legitimate training exercise in skilled
hands. One major difference was the length of time that the head and neck were held in
the hyperflexed state.
The term “Rollkur” had apparently been coined in an article in the German press to
describe the condition, but no formal definition had been produced. After considerable
debate and discussion the following definition of "hyperflexion" was recommended:
“"Hyperflexion of the neck is a technique of working/training to provide a degree
of longitudinal flexion of the mid-region of the neck that cannot be selfmaintained
by the horse for a prolonged time without welfare implications.”
"There must be an understanding that hyperflexion as a training aid must be
used correctly, as the technique can be an abuse when attempted by an
inexperienced/unskilled rider/trainer."
Although the Workshop agreed this definition was not perfect, it was felt to be appropriate
as a working definition pending further consideration by the Dressage and Veterinary
Committees.
3.2. General debate on how the issue should be managed
There was a lively and extensive discussion on how best to move forward. The bullet
points below are among the points raised:
• Why change the name of “Rollkur”? Why not train stewards to identify the problem
and brief them on control?
• Hyperflexion is a training tool. It is not part of basic training;
• A horse which has been well treated will maintain its flexed position when the reins
have been relaxed;
• At what stage does hyperflexion “use” become “abuse”? What constitutes “too
much” hyperflexion? Research is needed to specify the differences;
• What is “correctly applied” hyperflexion?
• What is an acceptable length of time to keep a horse hyperflexed?
• “It is a fact that most “Rollkur” trained horses have severe irregularities in their
natural gaits and some of them show obvious mental problems”;
• What evidence is there that lower level horses do not have neck lesions resulting
from hyperflexion?
• The standard and quality of horses has improved considerably over the past four
decades. “Rollkur” is more applicable with highly sensitive horses. How long
should it be used and how much harm is it doing?
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• There needs to be an understanding of the use of “Rollkur”; it is clearly dangerous
when used by unskilled riders/trainers;
• How can a Steward know what level of hyperflexion is acceptable? There is a real
danger of confrontation if a steward attempts to reprimand a top professional rider
who probably knows considerably more about the training technique than the
steward;
• Why use hyperflexion at all? Flexion is what the judges want to see and it wins
medals;
• Top riders have huge responsibilities. Inexperienced and unskilled young riders,
and particularly the young, must not be misled into attempting to emulate their
peers by undertaking training methods for which they are ill prepared;
• There are too many examples of aggressive riding which is not good for the image
of the dressage, or other, disciplines;
• Poll flexion can obstruct the airways;
• Refer to “Basic Training” and not to “Classical Riding”
3.3. Summary of Discussion
The Rapporteurs summarised the discussion and Dr Higgins gave a PowerPoint
presentation listing the main points:
• The interim definition proposed by the meeting needed further consideration.
• The Dressage, Veterinary and Welfare Subcommittees should carefully assess
the evidence and opinions presented at the Workshop and advise the FEI on
the way forward and the actions, if any, which must be taken;
• Hyperflexion is a welfare issue in the hands of the unskilled;
• Clarification is required for the following:
o what is a “training tool”?
o what is understood as the proper application of hyperflexion as a training
tool?
o what evidence is needed for stewards to prevent abuse?
• Research studies should be undertaken to increase our knowledge of the technique;
these should include:
o a scientific description of the site of flexion in the neck;
o the effect of draw reins and similar artificial aids;
o a clinical and scientific analysis of the impact of hyperflexion techniques on
the competition horse.
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4. Recommendations and Conclusions from the Workshop
The Chairman concluded the Workshop by stating that valuable progress had been made
although there were still many open questions. He believed that the feeling of the
meeting was that the Workshop had helped to clear the air and identify what now needed
to be done to improve knowledge of this issue in FEI sport. These included:
1. A form of words must be found to better describe "Rollkur" and "Rollkur-like"
techniques as tools in training.
2. The term "hyperflexion" with an appropriate working definition was considered as
an alternative to "Rollkur";
3. Evidence was presented that indicated in experienced hands there was no
apparent abuse, improper welfare or clinical side effects associated from the
use of hyperflexion. However, if not practiced correctly, there are serious
concerns for welfare and possible clinical injury that will affect a horse's wellbeing
and performance.
4. Horses must not be seen to be put under pressure. There must be a clear
understanding and proper application of such training tools;
5. Evidence is required to brief FEI Stewards adequately so that they could take
action to prevent abuse in all disciplines. The emphasis must be on lightness and
basic gaits;
6. The Dressage Committee would clearly wish to consider carefully the findings from
the Workshop with perhaps particular focus on stewarding and judging.
7. The Veterinary and Welfare Subcommittee should identify what research was
required to confirm if there is a welfare issue involved in training using Rollkur and
Rollkur like techniques;
8. A draft proposal would be presented to the Dressage Committee for consideration
prior to submission to the FEI.
5. ACKNOWLEDGEMENTS
The Chairman of the Dressage Committee thanked Professor Jeffcott, Dr. Higgins and Dr.
Sluyter as well as all contributors to the Workshop for tackling head-on such a
controversial issue in equestrian sport. She said she was delighted at the openness of the
discussion and although she realised there was still much to do she was confident that the
discipline was on the right track.
Professor Jeffcott endorsed the words of the Chairman of the Dressage Committee, and
thanked her personally for her leadership. He said he was deeply indebted to all the
speakers for the time and effort they had put into preparing such high quality
presentations. The organisation of the Workshop had been arduous and exacting and he
paid tribute to the staff of the Veterinary and Dressage Departments of the FEI. He
particularly wished to thank the two Rapporteurs, Dr Andrew Higgins and Dr Alex Atock.
Finally, and most importantly, he thanked all those who had attended the meeting and
contributed so positively to the discussion.
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List of Appendices
Appendix 1 - Preliminary Report of the Welfare Subcommittee on the use
of “Rollkur” as a training method for Dressage horses to the
Veterinary Committee.
Appendix 2 - Workshop Programme on 31 January 2006
Appendix 3 - Delegates in attendance at the Workshop
Appendix 4 - Abstracts of the scientific presentations made at the
Workshop
Appendix 5 - Comments received subsequent to the Workshop
Appendix 6 - FEI Press Release issued by Muriel Faienza on 31 Jan'06
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Appendix 1 - Preliminary Report of the Welfare Subcommittee on the use of
"Rollkur" as a training method for Dressage horses to the Veterinary
Committee.
Introduction
The Chairman of the Dressage Committee has asked the Veterinary Committee for advice on the
use of "Rollkur" or “Over Bending”, a practice that is used by some riders in the warm up just
before going into the arena. The exercise is said by proponents to ‘supple the horse’ and prepare it
for competition. The FEI has however received complaints suggesting that Rollkur is an ‘extreme
method of training’, may be ‘dangerous to the horse’ and is ‘not good welfare’. Rollkur has been
observed in dressage, eventing and show-jumping and has caused adverse media attention. As a
result the Chairman of the Veterinary Committee asked the Welfare Sub-Committee (WSC) to
comment on the use of Rollkur with regards to possible concerns for the welfare of the horse. This
is a first, preliminary report.
The FEI Code of Conduct Article 1(b)2 prohibits any training methods of horses which are abusive
or cause fear or for which they have not been properly prepared.
Definition
Rollkur has been defined as a training method involving forced flexion of the poll and neck with the
horse’s head pulled behind the vertical.
Background
Rollkur is said to have been introduced by the French horseman François Baucher (1796-1873) but
some claim Baucher’s ‘suppling exercises’ were only intended to be used on the standing horse,
not when in motion. Those who are opposed to the current use of Rollkur claim, inter alia, that it
‘stiffens the horse’, ‘causes excessive flexion’, and ‘induces discomfort to the animal’ while
providing the rider with ‘complete domination’ and control.
Professor Heinz Meyer (GER) drew attention to the technique in 1992 and has written extensively
on it (see, for example, Meyer, 1996). Rollkur and other training techniques have in recent years
been said to cause pathological problems in some horses. Articles have been published, for
example, on lameness in the dressage horse, influence of head posture on the respiratory tract of
healthy horses, effect on vision and the consequence of equestrianism generally on horse welfare
(Harman et al., 1999; Kold and Dyson, 2003; McGreevy, 2004a,b; Petsche et al., 1995; Odberg
and Bouisso, 1999; Racklyeft and Love, 1990).
Although some critics have suggested that subsequent neck and back problems have developed as
a result of frequent and sustained overflexion of the poll and neck, many top class dressage horses
that are known to be trained using Rollkur or Rollkur-like techniques have competed well into
relative old age suggesting that the use of such practices is not detrimental to performance. It
may be argued that a horse succeeding at top level would not perform well if it was in discomfort
or if its welfare was being seriously jeopardised by a particular technique or practice.
As this (and other) training methods continue to be used by the top medal winning riders and their
trainers, the conclusion is inevitable that their use must help to produce a performance that the
judges wish to see. This does not mean there are no welfare issue to be addressed, but it does
imply that an examination of training techniques in any horse sport or discipline should encompass
all levels of expertise including riders, trainers, judges, regulators, and veterinarians.
Conclusions and Recommendations
• Extreme flexion of the poll and neck often appears to induce discomfort to a horse and
apparently causes offence to a proportion of other riders and spectators at events. There is
2 The FEI Code of Conduct Article 1 (b) “Training Methods”: Horses must only undergo training that matches their
physical capabilities and level of maturity for their respective disciplines. They must not be subjected to any training
methods which are abusive or cause fear or for which they have not been properly prepared.
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therefore a perceived welfare issue for the horse, which the public may not continue to
tolerate.
• There appears to be little scientific evidence to show that the practice of Rollkur or Rollkur-like
techniques actually results in lasting damage to the horse. The WSC has not therefore been
able to reach a conclusive view as to whether Rollkur may be detrimental to horse welfare;
however the WSC does believe that a potential welfare risk exists and must not be ignored.
• Given the current lack of published scientific information, the WSC recommends that in
accordance with The FEI Code of Conduct Article 1 (b) the Dressage and Veterinary
Committees urgently and thoroughly review the effects, perceived or otherwise, of Rollkur or
Rollkur-like training techniques on the musculo-skeletal and physiological systems of the horse.
• While the WSC considers that in sound, experienced professional hands at a top-level
event Rollkur or Rollkur-like practices are unlikely to cause lasting harm to a horse, it may well
cause discomfort and apprehension, and could therefore be a welfare concern. Indicators of
stress could be monitored in a scientific study to ascertain whether horses are compromised
when such techniques are in use.
• The WSC does believe that there is a serious risk that less-experienced riders (including
minors) or trainers may imitate the techniques seen and attempt to develop similar training
methods at locations outside the FEI’s jurisdiction. The WSC believes that in such
circumstances there may well be a serious welfare issue.
• While fully appreciating that the practice of Rollkur or Rollkur-like techniques has many degrees
of severity, the WSC recommends that, in parallel with the instigation of appropriate scientific
research and dialogue, the Dressage Committee should make every effort to upgrade the
training of stewards to supervise practice in the warm up arenas at events (including lower
grade events) to ensure that there is no evidence of perceived abuse; Any relevant official
research undertaken on behalf of the FEI should also include jumping and event horses.
• The WSC recommends that the FEI should keep riders, trainers and the general public
informed of its concerns and of the action it is taking to assess any perceived negative effect of
the use of Rollkur.
References
1. Harman, A.M., Moore, S., Hoskins, R., Keller, P. (1999). Horse vision and the explanation of visual
behaviour originally explained by the ramp retina. Equine Veterinary Journal 31, 384-390.
2. Kold, S.E. and Dyson, S.J. (2003). Lameness in the Dressage Horse. Diagnosis and Management of
Lameness in the Horse. Eds. Mike W. Ross and Sue J. Dyson. Saunders. pp 975-983.
3. McGreevy, P. (2004a). Chapter 4, Learning. In: Equine Behavior, A Guide for Veterinarians and Equine
Scientists, Saunders. pp 85-118.
4. McGreevy, P. (2004b) Chapter 13, Training. In: Equine Behavior, A Guide for Veterinarians and Equine
Scientists, Saunders. pp 291-311.
5. Meyer, H. (1996). Zum Zusammenhang von Halshaltung, Ruckentatigkeit und Bewegungsablauf beim
Pferd. Pferdeheilkunde 12, 807-822
6. Petsche, V.M., Derksen, F.J., Berney, C.E., Robinson, N.E. (1995). Effect of head position on upper
airway function in exercising horses. Equine Veterinary Journal Suppl 18,18-22.
7. Odberg, F.O. and Bouisso, M-F. (1999). The development of equestrianism from the baroque to the
present day and its consequence for the welfare of horses. Equine Veterinary Journal Suppl. 28, 26-30.
8. Racklyeft, D.J. and Love, D.N. (1990). Influence of head posture on the respiratory tract of healthy
horses. Australian Veterinary Journal. 67, 402-405.
1 6
Appendix 2 - Workshop Programme on 31 January 2006
Time Presentation/Refreshments Speaker
11h00 – 11h10 Welcome & Introduction Prof. Leo Jeffcott (Chairman
Vet Committee & Convenor)
11h10 – 11h25 Rollkur - an introduction from the welfare
perspective
Dr Andrew Higgins (Chairman,
Welfare Subcommittee)
11h25 – 11h40 Equitation and learning theory - positive and
negative reinforcement
Dr Andrew McLean, Dr Paul
McGreevy & Prof.Leo Jeffcott
(Australia)
11h40 – 12h00 The trainer's view on over bending (Rollkur) as a
training aid for dressage competition
Mr. Sjef Janssen
(Netherlands)
12h00 – 13h00 Buffet Lunch All delegates
13h00 – 13h20 Functional anatomy in the horse as it relates to
over-bending (Rollkur)
Dr Gerd Heuschmann
(Germany)
13h20 – 13h40 Radiological aspects of the cervical region in
relation to over bending (Rollkur)
Dr. Emile Welling (Vet
Committee)
13h40 – 14h00 Schooling principles and welfare - the situation of
Rollkur in this context
Prof. Frank Ödberg (Belgium)
14h00 – 14h20 Discussion Session All delegates
14h20 – 14h40 Coffee break
14h40 – 15h00 Functional anatomy and diagnostic imaging of the
cervical spine
Prof.Jean-Marie Denoix
(Alfort, France)
15h00 – 15h30 The effect of different head and neck positions on
the thoracolumbar kinematics in the unridden
horse
Prof. Rene van Weeren
(Utrecht, Netherlands), Profs
Heinz Meyer (Germany), Mike
Weishaupt (Zurich, Switzerland),
Lars Roepstorf & Chris Johnston
(Uppsala, Sweden)
15h30 – 15h50 Exercise physiological aspects of over bending
(Rollkur)
Prof. Eric van Breda
(Maastricht, Netherlands)
15h50 – 16h10 Research techniques for studying over bending
(Rollkur)
Prof. Hilary Clayton (Michigan,
USA)
16h10 – 18h00 General Discussion and plan for preparation of the
report to the FEI.
All delegates
1 7
Appendix 3 - Delegates in attendance at the Workshop
Delegates and Speakers:
Name Designation Address
Allen, Kent MAG 2716 Landmark School Rd, The Plains, 20198 VA, USA
Atock, Alex WSC & Rapporteur
Round Oak Cottage, Bridstow, Ross-on-Wye, Herefordshire HR9
6QJ, UK
Carew, Lord Patrick WSC The Garden House, Donadea, Naas, Co Kildare, Ireland
Clarke, Stephen
Dressage
Committee
Mill Bank Farm, Mill Lane, Somerford Booths, Congleton, CW 12
2JS Cheshire, UK
Clayton, Hilary Speaker
Mary Anne McPhail Dressage Chair in Equine Sports Medicine
Large Animal Clinical, Sciences College of Veterinary Medicine
Michigan State University East Lansing, MI 48824-1314, USA
Davison, Richard IRDC Combridge Far, Combridge, Uttoxeter, ST 5BL Staffordshire, UK
Denoix, Jean-Marie Speaker
U.P. Clinique Equine (DEPEC), UMR INRA "Biomécanique et Patholog
Locomotrice du Cheval", Ecole Nationale Vétérinaire d’Alfort, 7,
avenue du Général de Gaulle, 94704 Maisons-Alfort cedex, France.
Duee, Michael WSC
C/o Deutsche Reiterliche Vereinigung, Freiherr-von-Langen Strasse
13, PO Box 110265, 48231 Warendorf, Germany
Farrington, Paul Vet Committee
The Coach House Vets, Burlyns Coach House, Ball Hill, Newbury,
RG20 0NU Berks, UK
Heuschmann, Gerd Speaker Velsen 29, 48231 Warendorf, Germany
Hinnemann, Johann x Harmmweg 34, 46 Voerde, Germany
Higgins, Andrew WSC & Rapporteur PO Box 274, Nowton, Bury St Edmunds, IP29 5NB Suffolk, UK
Hunt, David IDTC
IDTC International Dressage Trainers Club, Uplands Studs, Brook,
Godalming, GU78 5LA Surrey, UK
Janssen, Sjef Speaker Bolst 13, 5469 SC ERP, Netherlands
Jeffcott, Leo
Convenor & Vet
Committee
Faculty of Veterinary Science, The University of Sydney, J.D.
Stewart Building B01, 2006 Sydney NSW, Australia
Johnston, Chris Speaker
Faculty of Veterinary Medicine, Swedish University of Agriculture,
Box 7011, 750 07 Uppsala, Sweden
McEwen, John WSC
Cross Country Equine Clinic, Devauden, Chepstow, NP16 6NN
Monmouthshire, UK
McLean, Andrew Speaker
Australian Equine Behaviour Centre, 730 Clonbinane Road,
Broadford VIC 3658, Australia
Meyer, Heinz Speaker Am Wisselsbach 22, D-52146 Würselen, Germany
Nichols ,Nigel Vet Committee NSW, Australia
Ödberg, Frank Speaker
Ghent University, Faculty of Veterinary Medicine, Dpt. Of animal
nutrition, genetics, breeding and ethology, Heidestraat 19, 9820
Merelbeke, Belgium
Otto-Crepin, Margit IRDC President Elbchaussee 430, 22609 Hamburg, Germany
Pochhammer,
Gabriele Journalist St.Georg, Westerthal, 24340 Windeby, Germany
Rathore, Seamour Journalist
Horse & Hound, IPC Media Ltd, Kings Reach Tower, Stamford
Street, London SE1 9LS, UK
Roepstorff, Lars Speaker Vänsta 11, 73040 Kolbäck, Sweden
Salinas, Sergio Vet Committee
Av. Amapolas 170, Rancho Contento, 45010 Jalisco Guadalajara,
Mexico
Schuele, Dieter IDJC Steinersdorf 7, 91522 Ansbach, Germany
1 8
Snyder, Jack Vet Comittee 8140 Olive School LN, Winters, 95694 CA, USA
Truppa, Vincenzo Dressage Committee Piazza Buonarroti 32 , 20145 Milano, Italy
Tyler, Tony WSC Anne Colvin House, Snetterton, Norfolk NR16 2LR, UK
van Andel, Claartje Journalist Dressage Direct, The Netherlands
van Breda, Eric Speaker Bergstraat 6, 6174 RS Sweikhuizen, Netherlands
van Daele, Jacques
Steward Gen.
Dressage Rue Philippe Baucqstraat 89, 1040 Bruxelles, Belgium
van Weeren, René Speaker
Department of Equine Sciences, Faculty of Veterinary Medicine,
Utrecht University, Yalelaan 16, 3584 CM Utrecht, Netherlands
Weishaupt, Mike Speaker
Equine Hospital , VetSuisse Faculty, University of Zurîch,
Winterthurstrasse 260, 8057 Zurich, Switzerland
Welling, Emilie
Speaker & Vet
Committee Franse Pad 5, 1261 JC Blaricum, Netherlands
Withages, Mariette
Chairman,
Dressage Committee Kanaallei 45 , 2900 Schoten, Belgium
Young, Pamela Journalist
Horse International , 15 Thames Avenue, Pangbourne, Reading,
RG8 7BY Berkshire, UK
FEI Staff:
Falciola, Jean-
Claude Secretary General
Stone, Michael Sports Director
Sluyter, Frits Manager of the Veterinary Department
Julen, Christine Veterinary Department
Dominique Rochat Veterinary Department
Salomon, Eva Manager of the Dressage, Reining, Vaulting and Pony Riders Department
Milne, Anna Dressage, Reining, Vaulting and Pony Riders Department
Norinder, Catrin Manager of the Eventing & Olympic Department
Roche, John Manager of the Jumping Department
Faienza, Muriel Manager of the Communications Department
[ Key to abbreviations - IRDC= International Riders Dressage Club; IDTC= International
Dressage Trainers Club; IDJC= International Dressage Judges Club; MAG= Medication
Advisory Group; WSC= Welfare Subcommittee.]
1 9
Appendix 4 - Abstracts of the scientific presentations made at the Workshop
ROLLKUR – AN INTRODUCTION FROM THE WELFARE PERSPECTIVE
Dr Andrew Higgins
Chair, FEI Welfare Sub-Committee,
<ajhvet@globalnet.co.uk>
The Welfare Sub-Committee (WSC) was established by the FEI in 2004 to promote the health and
welfare of sport horses competing in FEI disciplines, and reports to the Veterinary and Ethics
Committees. In June 2005, the Sub-Committee was asked by the Chair of the Veterinary Committee
to examine possible welfare implications of Rollkur (‘or over-bending’) or Rollkur-like techniques.
The FEI Code of Conduct requires all involved with international equestrian sport to ensure that at
all times the welfare of the horse remains paramount, and prohibits any training methods which are
abusive or cause fear or for which the horse has not been properly trained. Having sought advice
and reviewed some of the available evidence, the WSC offers the following preliminary findings,
which will be subject to revision as further information comes to light:
1. There is (at least) a perceived welfare issue to be addressed.
2. Although there appears to be a lack of reliable scientific or veterinary evidence
available that the technique causes lasting damage to a horse, there should be
a thorough review of any effects the technique may have on the
musculoskeletal, psychological and physiological systems.
3. It seems to us that there is a serious welfare risk that less experienced riders,
often at locations outside the FEI’s jurisdiction, may imitate more skilful riders in
attempting to use the technique.
4. Within the FEI’s jurisdiction, e.g. in warm up areas, the FEI through the
Dressage Committee and others should seek to supervise the use of the
technique, probably by upgrading the training of stewards.
5. The FEI should keep riders, trainers and the general public informed of its
concerns, and of the actions it is taking to assess any demonstrated welfare
issues, and to address abuses.
EQUITATION AND LEARNING THEORY - POSITIVE AND NEGATIVE
REINFORCEMENT
Dr Andrew McLean, Dr Paul McGreevy* & Prof Leo Jeffcott*,
Australian Equine Behaviour Centre, 730 Clonbinane Road, Broadford, VIC 3658,
& *Faculty of Veterinary Science, University of Sydney, NSW 2006, Australia.
<andrewmclean@aebc.com.au>,<paulm@vetsci.usyd.edu.au>, <leoj@vetsci.usyd.edu.au>
Rollkur can be defined as a technique of working/training a horse to produce a degree of cervical
flexion that cannot be self-maintained by the horse for any length of time. It highlights of some of
the current debates surrounding the preparation of horses for modern dressage such as the notion
of “contact”. It is recognised throughout the English-speaking horse world as 'over-bending'.
Learning allows animals to use information about the world to tailor their responses to
environmental change. Training draws out desirable and suppresses undesirable innate behaviours
to institute novel responses. There are two major categories of learning: non-associative
(involving a single stimulus) habituation and sensitisation; and associative (involving a relationship
between at least two stimuli becomes established) classical (Pavlovian) conditioning and operant
(instrumental) conditioning. Examples of classical conditioning include stallions producing courtship
behaviours in association with the breeding barn alone.
Operant conditioning is used in most training systems. It relies on reinforcement and punishment.
Reinforcement makes responses more likely in the future; punishment makes them less likely. In
an example of operant conditioning, the animal receives a cue (command, trigger, signal or aid),
performs a response and gets a reward (primary reinforcer). Primary reinforcers are any resources
2 0
that animals have evolved to seek e.g., food, comfort, water, sex, play, liberty, sanctuary and
companionship.
Positive reinforcement involves the addition of a primary reinforcer. Positive reinforcement alone
does not lend itself to safe equitation, effective ridden training or prolonged maintenance of
extreme postures. Negative reinforcement includes the word negative only because it involves the
removal of an influence. It is not a “bad” modality per se. The removal of pressure is the reward
(reinforcement). Educated horses show association of negatively reinforced responses with light
tactile signals e.g., minimal rein tension. So, after foundation training (breaking-in) horse-training
involves combinations of operant conditioning and classical conditioning.
Negative reinforcement underpins all equitation. It relies on the immediate release of pressure as
an instantaneous reward and, in the best cases, is very subtle. Failure to release pressure can
cause conflict and learned helplessness. Confusion and conflict have behavioural and physiological
manifestations that shorten the horse’s working life.
Over-bending as a learned response may be as acceptable as other forms of negatively reinforced
postural responses, such as lateral bending. However, cervical flexion as a result of sustained bit
pressure has a lot more to do with compliance and pain avoidance than suppleness. Therefore,
some forms of Rollkur may be extreme, dangerous and capable of compromising welfare. It may
be dangerous for riders since it can "deaden the brakes" and that can lead to bolting as a
manifestation of habituation, and other unwelcome behaviours. It can compromise welfare since
horses can learn that there is nothing they can do to remove the pressure. If the horse’s head is
on its chest it has nowhere else to go and may be in a state of "learned helplessness".
The immediate incorporation of transient tests for self-carriage in all gaits and movements and at
all levels would effectively reward riders who apply learning theory correctly. Additionally, research
can remove emotiveness from the Rollkur debate by establishing, for the range of equine athletes,
how much contact is neutral; how much rein tension is too much; how can contact be measured;
how can discomfort be measured; how can pain be measured and how learned helplessness
manifests in horses?
THE TRAINER'S VIEW ON OVER-BENDING (ROLLKUR) AS A TRAINING AID FOR
DRESSAGE COMPETITION
Sjef Janssen, Tack Factory,
Bolst 13, 5469 SC,
Erp, The Netherlands
<sjef@tackfactory.nl>
I have been invited to speak about our technique of training horses for dressage. This will best be
achieved by explaining the basic philosophy which underlies it and then illustrating the theory with
a series of appropriate pictures.
One of the crucial issues to consider in the talk will be the method of round/deep training that is
just one of the many tools we use in our system of successful training. It is this message I
particularly want to get across to the group.
FUNCTIONAL ANATOMY IN THE HORSE AS IT RELATES TO OVER BENDING
(ROLLKUR)
Dr Gerd Heuschmann, Tierärztiliche Praxis fűr Pferde,
Velsen 77, 48231 Warendorf, Germany.
<gerdheuschmann@hotmail.com>
In my presentation I would like to explain how "Classical Dressage" schooling for young horses is
necessary for correct performance in the future. The classical system is not only intended for
dressage horses, but for jumpers and eventers and other disciplines as well.
2 1
The horse's anatomy must be considered in its training from the ground work up. This is achieved
by a systematic and well planned programme. The goal is to nurture a relaxed skeletal muscle
system and a well developed "long back muscle" which runs horizontally and functions as a
stabiliser. For optimum movement in training this must be considered to be a very important
muscle. Tension is the enemy of positive training.
Throughout training, each muscle must have a chance to relax after it is "charged" and this is
specific to the back muscles. The goal here is to minimise tension. A horse that is developed by
way of tension will never be truly "through", and certainly not "happy" or "healthy".
Young horses should always be ridden with a forward and downward neck. Only a free swinging
back muscle allows the rider to sit with the movement and "in" the horse. This effect should be
true in all three gaits. The neck position allows development of the top line muscles in the neck
area which later on produces relative raising of the forehand.
AS a result of "modern training" or "self training" one can surely recognise and distinguish the
difference between "classical training" and the others. This is shown in the three gaits, the walk,
the trot and the canter. Walk mostly is close to parallel and stiff, trot exaggerated and often
wrong in footfall and canter in the worst cases uses a four beat. Also many Grand Prix horses
show piaffe without collection (i.e. flexion of the haunches), all of which are the result of wrong
training in the young horse.
In my opinion, the first two years are the most important for development of the horse's body and
muscle structure. Only if the horse has been given this time it may go on to be a good sport
horse.
In today's "arenas" instead of demonstrating correctness in the basic gaits, some are more
interested in the show effect and "wowing" the crowd.
My biggest concern though is for the horse's welfare and wellbeing. This was the basic goal of the
traditional philosophy. Horses trained for the "show effect" lack, both mentally and physically, the
strength and endurance and are the horses that crowding the horse clinics all over the world.
My final comment is that a tense athlete is not a happy athlete!!
RADIOLOGICAL ASPECTS OF THE CERVICAL REGION IN RELATION TO OVERBENDING
(ROLLKUR)
Dr Emile K Welling, The Netherlands
<ekwelling@planet.nl>
The basic premise for this presentation is - do certain training methods (e.g. hyperflexion or over
bending) cause more damage than other methods, especially in relation to the cervical region?
Pain in the cervical region is not as common as back pain or pain in the limbs. Horses with clinical
and radiological discomfort in the neck suffer mainly from spondylosis, arthropathy and vertebral
stenosis. Another common radiological finding is calcification and new bone formation (exostosis)
at the attachment of the ligamentum nuchae to the nuchal crest of the occipital bone.
Weiler (Berlin 2000) looked at 60 fresh dissections of this attachment and in 80% of the cases he
found the presence of abnormal calcification and exostosis. This is curious because of the great
diversity of the horses in his study.
Radiological evaluation of the cervical region of different types of horses, with different training
methods, sport horses and pleasure horses shows us a great variation of radiological abnormalities.
Radiological examination of two top Grand Prix dressage horses which have been trained for many
years with a special system, deep and round (i.e. hyperflexed, Rollkur), will hopefully contribute to
a better understanding of special training methods. Are these methods dangerous for the physical
status and/or the welfare of the horse?
2 2
SCHOOLING PRINCIPLES AND WELFARE - THE SITUATION OF ROLLKUR IN
THIS CONTEXT.
Professor Frank Ödberg,
Ghent University, Faculty of Veterinary Medicine,
Dept of Animal Nutrition, Genetics, Breeding & Ethology,
Heidestraat 19, B-9820 Merelbeke, Belgium.
<frank.odberg@Ugent.be>
It would be an error to focus only on the technique of Rollkur. It must be seen within a more general
philosophy of schooling that is probably deleterious to the horse’s welfare. The key questions are:
1. Does Rollkur always decrease welfare, whichever way it is carried out? (i.e. is Rollkur an inherent
part of a schooling philosophy that uses coercion as a rule? Or can it be applied in an animalfriendly
way as a gymnastic exercise, provided knowledgeable people perform it?).
2. If Rollkur does not decrease welfare in the latter case, is its purpose useful, a redundant practice, or
counter-productive in equestrianism?
This presentation starts with some general comments on horse welfare followed by a short historical survey
of the evolution of riding principles which ends with a criticism of the predominant way of schooling
nowadays. Rollkur is situated within that context. Suggestions about the way forward and the role of
science close the arguments.
An underestimated welfare problem
Although the welfare of animals used for sport has long been recognised as part of applied ethology
(Ödberg, 1976), scientists have focused their interest on farm animals. Some of them, as well as some
animal protection societies, did express concern about the fate of horses (Ewbank, 1985; Gerber, 1984;
Hopes, 1984; Lawrence, 1996; Ödberg, 1987). Control of welfare at the physical level was improved by the
FEI (Atock and Williams, 1995). The problem is that if the interpretation of some types of abuse (such as
beating, soring the legs, exhaustion, incompetent poling) is straightforward, other practices need more
objective evidence in order to be considered as unethical. This is the case with behavioural problems.
Inappropriate schooling and riding is probably a frequent and underestimated source of decreased welfare,
but it will be difficult to convince riders because personal pride is involved. There is a need for scientific
information in this context. The very first steps in that direction have recently been dealt with during the
First International Equitation Science Symposium in Melbourne (2005). Such data are important, on the one
hand in order to evaluate some practices more objectively (i.e. is there a true welfare problem?), and on the
other hand, whenever a problem is detected, in order to convince some members of a very traditional world
to adapt certain practices.
The development of schooling techniques
A short illustrated survey will be given of the history of equestrianism and its implications for welfare.
According to available historical documents, and as far as we can interpret such texts correctly, there has
not been a clear progressive linear evolution from antiquity to modern times concerning schooling
competence and gentleness. Each period saw probably gentle and violent people (e.g. Xenophon appears
very knowledgeable in understanding horse behaviour and often insists on gentleness, giving concrete
advice, while some Greek artefacts show some violent riders). Drawings and the few writings available from
the Middle Ages and the renaissance suggest rather forceful techniques. Even if some authors (e.g. Grisone)
mention horses should be treated with kindness, their methods elicit quite a bit of scepticism. One can
however identify a gradual improvement in schooling refinement from the end of the renaissance (e.g.
Newcastle, Pluvinel) up to the baroque period. The latter and its plethora of masters represent probably the
acme of riding. A functional technique became an art in itself. Camera’s had not been invented yet, but
when scholars of these master’s writings endeavour to apply their methods, results are often superb. The
19th century represents a struggle with new challenges. While some masters kept the baroque tradition
alive, others experimented with new methods that influenced riding practices in the 20th century. A very
representative example is François Baucher (his first method will be relevant for the appraisal of R). There
are at least three reasons for those changes: an interruption of tradition due to the closing of academies by
the French revolution, the development of the fashion of racing and foxhunting and the concomitant change
in favoured breeds, the development of competition in the 20th century (Ödberg and Bouissou, 1999). If
new methods can in principle be acceptable from the point of view of welfare if applied by tactful people,
they can be deleterious in the hands of the average rider. A consequence is that the modern way of
schooling is often quite coercive as compared to the baroque philosophy and lacks lightness and self2
3
carriage (see e.g. de Bragance, 1976; Henriquet and Durand, 1996; Loch, 1994; Racinet, 1999). It might
contribute to the high percentage of horses being slaughtered at a young age, such as in Germany (von
Butler and Armbruster, 1984), France (Ödberg and Bouissou, 1999), or at least before reaching the “old
age” of 20+ in Sweden (Wallin et al., 2000).
Most people agree that an increasing degree of collection should be obtained progressively through circles,
shoulder-in and gait variations. A concomitant aspect is the horse showing poll-flexion. However, this all
should happen in an as unconstrained way as possible. The horse should react to as discrete as possible
aids and this rests on elementary learning principles (McGreevy and McLean, 2005; Waran et al., 2002). To
begin with, the stimulus must be clear and well identifiable. This requires what is called in equestrian terms
“the independence of aids”. When the right response is given to a clear stimulus an agreeable feeling (or
the absence of a disagreeable one) should follow or at least surely not the presence of a disagreeable one.
That means that the stimulus should not be repeated because it will induce both habituation (i.e. less
sensitivity) and the animal will think it did not give the right response and be confused, which in turn can
lead to emotional responses that interfere with learning. This is simply what is meant in the French
terminology by “descente de mains, descente de jambes” (and some will add “descente d’assiette”): once
the horse is at the requested rhythm or in the desired attitude, refrain from doing anything, don’t interfere
and let him go by himself. Besides this, the discreteness of the aid is obtained by a gradual decrease of its
strength in function of the increasing sensitivity of the horse. Unfortunately, all too often riders keep
repeating aids at the same strength when the horse is responding correctly, which induces a vicious circle
towards coercion. Furthermore, the horse should not only understand the right stimulus-response
association, it should physically be able to show the response without pain or strain (i.e. it should be supple
enough). As often people do not take time to make their horse supple, the disagreeable experience after
the stimulus renders the animal tense which induces a vicious circle towards stiffness and less elegance.
The tendency to work with a hard contact with the mouth is an illustration of what is described above.
There are even instructors who require the horse to lean hard on the hand (the “5th leg”) which has the
additional disadvantage to hamper the horse from finding and working with its own equilibrium and to
increase the chances that the horse falls on its forehand instead of showing more collection. The ideal of
riding “with the weight of the reins” does not mean a loss of contact, which is demonstrated when the horse
shoots forward at the slightest request of the seat.
A hard hand contact implies more problems. It represents another inconsistency with learning principles (i.e.
that stimuli must be unequivocal and not contradictory). Stress occurs when two contradictory stimuli are
given simultaneously or when the same response is sometimes punished and sometimes rewarded (=
operant conditioning). Also when there is no clear difference any more between one conditioned stimulus
(e.g. a circle) that was originally followed by something agreeable (food) and another one (ellipse) that was
followed by something disagreeable (electric shock) (= Pavlovian conditioning). Experimental neuroses are
produced when the conditioned stimulus becomes equivocal (e.g. half-way between the circle and ellipse).
The horse learns first that a pressure in the mouth means “stop” or “slow”. When later the animal is being
ridden with a hard hand it gets the signal “slow” simultaneously with the aids for “go”. One consequence is
that the rider will have to compensate by giving repeatedly harder leg aids, rendering the development of
discrete aids impossible. This can also lead to experimental neuroses. Depending from their individual
predispositions (there are “active” and “passive” ways of coping with stress), some horses will show evasive
behaviours and signs of frustration (the so-called “resistances”, such as headshaking, ears back, tail
swishing), go even berserk (bucking, rearing, bolting) and/or become aggressive, while some will fall in
passive learned helplessness. Needless to say the progression towards the ideal of lightness is impossible
when riding in such a way. Lightness is being defined as the unconstrained use of only those muscles
necessary for a given movement.
Poll-flexion requires some specific comments in connection with the above paragraph. Ideally speaking, if
lightness is implemented for the start, it should be a concomitant phenomenon occurring naturally with
increasing suppleness and collection. However, due to various reasons (conformation, misunderstanding)
this is not always the case, and a horse should not work with a higher placed neck without showing pollflexion
as this will result in a hollow back and no collection as is too often seen in the average rider or in
jumping competitions (“star-gazers”) (NB: Western riding horses can collect well without poll-flexion but
they keep the neck low). Therefore, drawing reins can eventually be used in order that the horse
understands what is required. However, such methods should be used very knowledgeably and for a limited
time during schooling progression while keeping lightness in mind. Many riders nowadays use them as a
rule and keep using them. When the drawing reins are not in use, they maintain their horse in poll-flexion
by pulling the reins. A horse schooled with a constant respect for suppleness and lightness gives on the
contrary the feeling of taking that position by itself when reacting to the seat aids because the contact
consists of the weight of the reins.
2 4
For the sake of more complete information, it should be mentioned that Cook (2000, 2002) argues that pollflexion
always induced hypoxia (without nuances concerning the way it is obtained). The presence of a bit
worsens it through increased salivation. This is in contradiction with the traditional view that salivation is a
welcome sign of relaxation. However, the snag is that this author has not presented scientific data to
support his hypothesis up to now. Experiments on this problem have started in Ghent (Behaeghel, 2003)
and are underway.
Application of these considerations to Rollkur
In human gymnastics one can develop the body more globally by playing various, preferably
complementary, sports. There was a period where Swedish gymnastics dominated. Its philosophy was that
particular groups of muscles had to be developed separately by means of specific exercises. The traditional
way of making horses supple has been through “global” exercising. During the first phase of his
investigations, Baucher, developed specific methods for exercising particular parts of the horse (e.g. the
lower jaw, the neck longitudinally, the neck sideward, combinations) with one or two reins, with various
height positions etc. According to the iconography he apparently positioned his horses quite far (e.g. the
neck is very strongly bent while positioned upward). The main flexion, however, is at the level of the
axis/atlas.
That master developed various techniques that gave good results as long as they were used by himself and
by the most tactful of his pupils (e.g. the famous “effet d’ensemble”, his concept of “attaques de l’éperon”).
Used by the average rider it resulted in equestrian disasters and animal suffering. The expression of one of
his pupils became a legend: “It’s extraordinary, it’s admirable! But it’s a razor blade in the hand of a
monkey!” (Baucher, 1859).
Similarly, one can imagine that Rollkur can be applied in a tactful way, like Baucher’s exercises holding the
reins between two fingers, which would demonstrate that suppleness was obtained gradually. The most
obvious difference lies in the position of the neck that is bent downwards. The question is then to what
extent is it useful? Does it really add something more to the “global” way of exercising? As a rider with
affection for the baroque philosophy, I am rather sceptical. Horses schooled with the required progression
simply do not need any particular exercise of the neck. Furthermore, wouldn’t it put more weight on the
forehand, especially with modern breeds already showing that handicap? Maybe specialists in equine
exercise physiology can contribute to solving those questions and one must remain open to new data. The
most important from the point of view of ethics, is that a priori provided Rollkur is performed within
lightness, no decreased welfare should be suspected in se. However, what is extremely disturbing when
examining the pictures takes from various members of the Dutch team is that the horses are brought into
that position by force. One notices a high tension, not only on the snaffle rein, but also on the curb (while a
curb should only have a relaxing function and never one of force). The effect of that tension on the seat of
the rider can even be observed, which suggests a matter of kilograms while one should work with grams.
One is confronted here with the more general problem of modern coercive way of riding that is in complete
contradiction with academic principles. As mentioned in the introduction, measures should be taken, not
against Rollkur as such, but in order to protect the horses from a violent way of riding and lack of lightness.
That implies a fundamental change in the mentality and training of modern dressage judges and riding
instructors. This should be extended to jumping judges who should be trained to evaluate adequately the
quality of riding and be empowered to sanction riders not only when they overtly beat their horse, but also
when they ride in a brutal way. It is always wiser to wipe one’s own doorstep before other people do so.
The FEI should avoid potential future campaigns by some animal rights organisations. Experience shows
that when it gets so far, extremists are more heard and have more influence than knowledgeable experts.
Evaluating scientifically the gentleness of schooling
Honesty compels to admit that the statement that coercive riding is deleterious to welfare rests on
extrapolations from our knowledge about learning theory and behavioural responses in stress situations and
on intuition. This hypothesis should be tested scientifically through direct observations and measurements.
How can one adapt the already widely used welfare parameters to riding? One could compare baseline
values of horses schooled according to various schooling techniques after months of procedure. However,
one is then confronted with the problem of adaptation. Could one use anticipation or a challenge? (e.g. by
comparing stress parameters between horses schooled differently, when they see the rider approaching
with the saddle). One could on the contrary focus on short time scale events (e.g. how does heart rate
change each time the spur is used repetitively as compared to one brief attack that results in the
subsequent obedience to a few grams of the calf?). Do some parameters correlate with behaviours
colloquially called “resistances”? There is a need to determine lightness more objectively. This can be
expressed through a low tension on the bit through the reins. Various authors have developed more
recently electronic devises that measure tension telemetrically (Clayton et al., 2003; de Cartier d’Yves and
2 5
Ödberg, 2005; Preuschoft at al., 1999; Warren-Smith et al., 2005). Some used them to seek correlations
with other parameters such as heart rate and behaviour during a standard dressage test with horses from
different schooling levels (de Cartier d’Yves and Ödberg, 2005) while others measured the severity of
various gears (Preuschoft et al., 1999).
References
Atock MA and Williams RR. 1995. Welfare of competition horses. In : The Thinking Horse. Equine Research
Centre Seminar Series, Guelph ; 51-65.
Baucher F. 1859. Oeuvres Complètes. Chez l’auteur, Dumaine et Dentu, Paris, 744 pp.
Behaeghel I. 2003. Kan het bijbrengen van paarden hypoxie veroorzaken ? Unpublished undergraduate
thesis, Ghent University.
Clayton HM, Singleton WH, Lanovaz JL and Cloud GL. 2003. Measurement of rein tension during horseback
riding using strain gage transducers. Experimental Techniques, 27; 34-36.
Cook WR. 2000. Störungen der Atemwegsfunktion und andere durch das Gebiss verursachte Probleme des
Pferdes – Ein Einsatz zur Problemlösung. Pferdeheilkunde, 16 ; 333-351.
Cook WR. 2002. Bit-induced asphyxia in the horse. Journal of Equine Veterinary Science, 22 ; 7-14.
de Bragance D. 1976. L’Equitation de Tradition Française. Odège, Paris, 172 pp.
de Cartier d’Yves A and Ödberg FO. 2005. A preliminary study on the relation between subjectively
assessing dressage performances and objective welfare parameters. Proceedings of the First International
Equitation Science Symposium, Melbourne. Proc. N° 360. The University of Sydney; 89-110.
Ewbank R. 1985. Contribution of ethology to clinical interpretation of the horse’s welfare. Equine Veterinary
Journal, 17; 2-3.
Gerber H. 1984. Ethical problems for veterinary surgeons at equestrian events. Equine Veterinary Journal,
16; 25-27.
Henriquet M and Durand C. 1996. Gymnase et Dressage. Maloine, s.l., 210 pp.
Hopes R. 1984. The balance of welfare. Equine Veterinary Journal, 16, 1-3.
Lawrence EA. 1996. Ethics of the use of horses for sports. Pferdeheilkunde, 12, 388-390.
Loch S. 1994. Histoire de l’Equitation Classique de l’Antiquité à nos Jours. Maloine, Paris, 247 pp.
McGreevy P and McLean A. 2005. Behavioural problems with the ridden horse. In: Mills, D. and McDonnell,
S. The Domestic Horse. The Evolution, Development and Management of its Behaviour. Cambridge University
Press, Cambridge; 196-211.
Ödberg FO. 1976. What is “applied ethology”? Acta Zoologica et Pathologica Antverpiensia, 64; 95-104.
Ödberg FO. 1987. Chronic stress in riding horses. Equine Veterinary Journal, 19; 268-269.
Ödberg FO and Bouissou, MF. 1999. The development of equestrianism from the baroque period to the
present day and its consequences for the welfare of horses. Equine Veterinary Journal Supplement, 28; 26-
30.
Preuschoft H, Witte H, Recknagel S, Bär H, Lesch C and Wüthrich M. 1999. Über die Wirkung gebrauchlicher
Zäumungen auf das Pferd. Deutsche Tierärztliche Wochenschrift, 106; 169-175.
Proceedings of the First International Equitation Science Symposium, Melbourne. Proc. N° 360. 2005. The
University of Sydney. 114 pp.
Racinet JC. 1999. L’Equitation de Légèreté. PSR, La Roche-Rigault, 350 pp.
von Butler I and Armbruster B. 1984. Struktur und Abgangsursachen bei Schlachtpferden. Deutsche
Tierärztliche Wochenschrift, 91; 330-331.
Wallin L, Strandberg E, Philipsson J and Dalin G. 2000. Estimates of longevity and causes of culling and
death in Swedish warmblood and coldblood horses. Livestock Production Science, 63; 275-289.
Waran N, McGreevy P and Casey RA. 2002. Training methods and horse welfare. In: Waran N (Ed.). The
Welfare of Horses. Kluwer Academic Publishers, Dordrecht; 151-180.
2 6
FUNCTIONAL ANATOMY AND DIAGNOSTIC IMAGING OF THE CERVICAL SPINE
Denoix J-M, DVM, PhD, agrégé
CIRALE - ENVA, Goustranville,
14 430 Dozulé, France.
E-mail : jmdenoix@vet-alfort.fr
Introduction
The neck is an essential part of the horse's locomotor system. Movements of the neck are required
for the longitudinal and lateral balance as well as impulsion and deceleration. Lesions of the cervical
spine can be responsible for neck pain, neck stiffness, poor performance, forelimb lameness and, in
some cases, can induce neurological manifestations.
1. Functional anatomy of the cervical spine
The cervical intervertebral joints present a thick disk and flat articular processes allowing wider
intervertebral mobility than in the thoracolumbar spine. As the centre of rotation is located within the
vertebral head, during flexion, there is a dorsal sliding of the vertebral head, opening of the
intervertebral foramina and widening between the articular processes. During extension there is a
dorsal displacement of the vertebral fossa, narrowing of the intervertebral foramina and increased
pressure between the articular processes.
Flexion of the cervical spine induces tension of the nuchal ligament and elongation of the dorsal
cervical muscles. Maximum tension is observed in the nuchal ligament (especially the funicular, dorsal
part) when lowering of the neck is associated with flexion of the head. Because of the tension applied
by the nuchal ligament over the top of the spinous processes of the withers, flexion of the neck is
accompanied by flexion of the thoracic spine. Extension of the neck induces relaxation of the nuchal
ligament as well as supraspinous ligament in the thoracic area.
Lateroflexion is a wide movement in the cervical spine. Between C3 and T1, lateroflexion on one side
is associated to rotation on the opposite side. In the nuchal area, lateroflexion on one side is
associated to rotation on the same side.
2. Diagnostic imaging of cervical lesions
Our routine imaging approach to problems arising from cervical spine consists of the combination of
plain radiography and ultrasonography.
a) Radiography
Radiography remains the basic imaging technique for the evaluation of the cervical spine. Our routine
approach consists in taking 3 laterolateral projections including: the cranial part from the external
occipital tuberosity to the third cervical vertebra (C3); the intermediate part from C3 to C6, and the
caudal part from C5 to the first thoracic vertebra (T1). For each projection, it is crucial to make good
superimposition of the left and right sides of the vertebra. Any rotation or craniocaudal oblique
projection alters the evaluation of the size and shape of the articular processes and vertebral canal.
The caudal projection (C5-T1) must be exposed enough to allow visualisation of the last cervical disc
(between C7 and T1).
Oblique dorsolateral-ventrolateral projections are useful to avoid superimposition of the left
and right articular processes. They provide a nice representation of the joint space between the
articular processes on the side of the generator and a good individualisation of the articular processes
on the opposite side.
The radiographic criteria in relation to the presence of neck lesions are:
- vertebral alignment;
- size and shape of the vertebral canal;
- size, shape and architecture of the articular processes;
2 7
- size of the intervertebral disk and shape of the vertebral fossa and corresponding vertebral
head.
A range of abnormal findings can be indicative of cervical lesions:
1- Malalignment of vertebrae
This abnormal finding is often seen between C3 and C4 and between C5 and C6. But it can also be
seen in other locations such as C2-C3 and C6-C7. At every location malalignment is often associated
with:
- hypoplasia of the corresponding (cranial) vertebral fossa, with relative caudal elongation of
the vertebral arch;
- ventral flattening of the corresponding vertebral head (dysplasia);
- dorsal subluxation of the vertebral head inducing narrowing of the median diameter of the
vertebral canal.
2- Anatomical stenosis of the vertebral canal
Anatomical stenosis of the vertebral canal can be seen in any location between C3 and T1. Reference
data have been published on the ratio between the median (erroneously called sagittal) diameter of
the vertebral canal and the dorsoventral diameter of the corresponding vertebral head (Moore et al
1994, Rush, 2003). In our experience, considering this ratio, we found stenosis of the cervical
vertebral canal (CVC) in sound horses and ratios above the limit because of the presence of small
vertebral heads in neurologic horses.
3- Dynamic stenosis of the vertebral canal
Instability of cervical intervertebral joints can be responsible for cervical compressive myelopathy
(CCM) during flexion of the neck and neurological manifestations. It can be seen on dynamic plain
radiographs on the sedated standing horse or under general anaesthesia. Instability of cervical
intervertebral joints is often secondary to a ventral flattening of the vertebral head as well as
flattening and caudoventral obliquity of the vertebral fossa.
4- Hypertrophy of the articular processes
This condition is often seen in the caudal part of the cervical spine especially at C6-C7. It can be
diagnosed on lateral radiographs as well as on oblique projections. Hypertrophy of the articular
processes can induce dorsal compression of the spinal cord but also lateral compression which is
difficult to identify with radiography even using myelography.
5- Fragmentation of the articular processes
Osteochondral fragmentations as well as traumatic fractures of the articular processes may be
responsible for neck pain, stiffness and/or CCM. Osteochondral fragmentation of the articular
processes is often accompanied with soft tissue thickening and hypertrophy of the affected processes.
6- Osteoarthrosis of the complexe articular processes-synovial intervertebral articulation (AP-SIVA)
Degenerative changes of the AP-SIVA complexes can be seen in horses presenting neck pain,
stiffness and poor performance. Abnormal radiographic findings include: subchondral bone lysis,
articular processes sclerosis and periarticular proliferation. They can be found on one or both sides of
the cervical spine.
7- Intervertebral disk lesions
Abnormal radiographic findings indicative of disk lesions include: narrowing of the radiolucent space
between the vertebral fossa and head; avulsion fractures from the vertebral fossa, disk mineralisation
and ventral enthesophytes. Disk cavitation and fissure formation without narrowing cannot be seen
radiographically.
b) Ultrasonography
2 8
Ultrasonography is now systematically used in association with radiography in the routine evaluation
of neck problems in horses. It is performed with 7.5 or 5 MHz convex probes. On a transverse section
made at an intervertebral joint space, different anatomical structures can be seen in a dorsoventral
direction:
- the caudal articular process of the cranial vertebra;
- the intervertebral joint space between the articular processes;
- the cranial articular process of the caudal vertebra;
- the vertebral artery and vein;
- the transverse process of the caudal vertebrae.
Ultrasonography is very sensitive to any bone surface abnormalities such as hypertrophy or
fragmentation of the articular processes. With this procedure, soft issue injuries of the synovial
intervertebral joint space between the caudal and cranial articular processes (synovial fluid effusion,
synovial membrane proliferation, capsulitis…) can be identified. These soft tissue alterations can be
responsible for dorsolateral compression of the spinal cord, not seen on radiographs.
Ultrasonography is also particularly useful for the specific treatment of the cause of cervical
problems. Intra-articular ultrasonographic guided injection with steroids (sometimes with hyaluronic
acid) is made between the articular processes. This procedure is safe and well tolerated by horses.
References
Denoix JM, Audigié F : The neck and Back. In « Equine locomotion » Back W & Clayton H. ed. Saunders,
London, Edinburgh, New York. 2000,167-192
Denoix JM: Spinal biomechanics and functional anatomy. Vet. Clin. North Am. - Equine Pract. 1999,15 (1),
27-60
Denoix J.M. : Biomécanique et travail physique du Cheval. Numéro spécial. L'Éperon-Information Hippique,
Issy-les-Moulineaux, 74 pages, 67 figures, 57 photos.
Denoix J.M.: Kinematics of the thoracolumbar spine in the Horse during dorsoventral movements: A
preliminary report. Equine Exercise Physiology, 2nd ICEEP (Second International Conference on
Equine Exercise Physiology), publications, 1987, 607-614.
THE EFFECT OF DIFFERENT HEAD AND NECK POSITIONS ON THE
THORACOLUMBAR KINEMATICS IN THE UNRIDDEN HORSE
P.R. Van Weeren, C. Johnston L. Roepstorff, M. A. Weishaupt
1Department of Equine Sciences, Utrecht University, The Netherlands.
<r.vanweeren@vet.uu.nl>
Reasons for performing the study: In many equestrian activities a specific position of head
and/or neck is required that is dissimilar to the natural position. Much controversy exists on the
impact of these positions, but no quantitative data are available.
Objectives: To quantify the effect of 5 different head and neck positions on thoracolumbar
kinematics of the horse.
Methods: Kinematics of 7 high level dressage horses were measured walking and trotting on an
instrumented treadmill with the head and neck in the following positions: HNP2=neck raised,
bridge of the nose in front of the vertical; HNP3=as HNP2 with bridge of the nose behind the
vertical; HNP4=head and neck lowered, nose behind the vertical; HNP5=head and neck in extreme
high position; HNP6=head and neck forward downward. HNP1 was a speed-matched control (head
and neck unrestrained) for all measurements.
Results: The head and neck positions only affected vertebral angular motion patterns (AMP) in
the sagittal plane (flexion-extension). There was no influence on lateral bending or axial rotation.
The positions in which the neck was extended (HNP2, 3, 5) increased extension in the anterior
thoracic region, but increased flexion in the posterior thoracic and lumbar region. For HNP4 the
2 9
pattern was opposite. Range of motion (ROM) of vertebrae was reduced at walk in the lumbar
region in HNP2 and 5, and at trot also in HNP3. Restriction was more evident at trot than at walk
and most evident in HNP5. In this position there was an increase in ROM of lateral bending in the
thoracic region at walk and of axial rotation at trot. In HNP4 there was an overall increase in
flexion-extension ROM, at walk mainly thoracic, at trot also lumbar. HNP5 was the only position
that negatively affected intravertebral pattern symmetry and reduced hind limb protraction.
Conclusions: There is a significant influence of head/neck position on thoracolumbar kinematics,
principally in the sagittal plane. Positions with an elevated neck tend to induce extension in the
thoracic region and flexion in the lumbar region. Lower neck positions produce the opposite. High
neck positions generally lead to a restriction of ROM of vertebrae, especially in the lumbar area.
Low neck positions will increase ROM. A very high position of the neck seems to greatly disturb
normal kinematics.
Potential relevance: This study provides quantitative data on the effect of head/neck positions
on the thoracolumbar spine.
EXERCISE PHYSIOLOGICAL ASPECTS OF OVER-BENDING (ROLLKUR)
Dr. Eric van Breda, Maastricht University, The Netherlands
<Eric.vanBreda@BW.unimaas.nl>
Equine exercise physiological science is concerned with the overall outcome of training and
exercise on the entire body. Exercise physiology in general encompasses general organ and cell
physiology, endocrinology, neurology, psychology/behavioural, kinematics, biomechanics, etc. In
training horses all of these components have to work in a coordinated fashion in order to reach full
physiological adaptation.
The primary goal of equine athletic training is to enhance performance and maintain health
and wellbeing. From a physiological point of view to push performance capacity to the upper limit,
relatively high amounts of different types of training are necessary during the long term athletic
career of the horse. Consequently, equine athletes are often balancing on the edge between the
right amount of training (health/wellbeing) and overtraining (disease but not necessarily a
decrease in wellbeing). One of the most difficult parts of the training process is to find the optimal
balance between intense training, recovery and wellbeing of the equine athlete
Alternative training techniques for each horse and rider are mandatory to prevent the horse
from falling into the “danger-zone” called overtraining. Overtraining can either be short or longterm
and is, as far as exercise physiology is concerned, caused by central (neuro-endocrine and
behavioural) aspects like pain, stress and stereotype behaviour. To date, no other (biological)
parameters have been reported to be valid. One of the most likely causes of overtraining is
monotony in training. Therefore, variation in training techniques is necessary in order to: 1)
prevent horses from falling into a state of overtraining and 2) keep the equine athlete happy and
maintain wellbeing.
Recently, we performed a study in which we investigated the effect of a new training
technique in dressage (Rollkur). Parameters of stress were measured in recreational trained horses
(n=7) and elite (International Grand Prix level) trained dressage horses (n=5). In the training of
the elite trained dressage horses an unnatural head/neck position (Rollkur) was used whereas in
the recreational horses such training technique is not common. Stress was measured by heart rate
variability analysis 30 minutes post-feeding in the morning and thirty minutes post-exercise after a
morning training session. No significant difference could be found at rest between the recreational
and elite trained horses. Interestingly, however, during the post-training measurements the elite
dressage horses showed less stress. Our results indicate that elite trained horses tend to have less
stress than recreational trained horses post-exercise. The findings of the present study suggest
that the health and wellbeing of elite trained horses is maintained despite non-natural
biomechanical positions.
In conclusion, our findings are, to the best of our knowledge, the first that scientifically
describe the physiological effects of any dressage training technique in elite trained horses and
3 0
showed that no acute stress is present despite the use of the Rollkur training technique. We
suggest that, from a exercise physiological point of view, different training methods are mandatory
in training in order to prevent athletes from falling into a state of overtraining which might hamper
health and wellbeing.
Advice to FEI: From a scientific physiological point of view the technique of Rollkur, as
measured in elite level trained dressage horses, causes no harm at the central physiological
systems. Although more physiological research into the effects of the training method in young(er)
horses and horses that are in an earlier phase of their long term athletic development is necessary.
At the moment, based on our research the over-bending does not pose a serious threat to the
wellbeing of the horses.
Selected references:
E. van Breda, A non-natural head neck position (Rollkur) during training results in less stress in elite trained
dressage horse. Journal of Applied Animal Welfare Science. 9(1): in press, 2006.
Rietmann TR, Stauffacher M, Bernasconi P, Auer JA, Weishaupt MA. The association between heart rate,
heart rate variability, endocrine and behavioural pain measures in horses suffering from laminitis. J Vet Med
A Physiol Pathol Clin Med., 51(5):218-25, 2004
E. van Breda, Training and overtraining in the elite dressage horses
Scientific Proceedings Voorjaarsdagen, 2004.
RESEARCH TECHNIQUES FOR STUDYING OVER-BENDING (ROLLKUR)
Prof. Hilary M Clayton, BVMS, PhD, MRCVS
McPhail Equine Performance Center
Michigan State University
East Lansing, MI 48824, USA.
<claytonh@cvm.msu.edu>
The neck is one of the most mobile parts of the horse’s body. In order to perform research on the
effects of the type of over-bending described as Rollkur, it is necessary to define the Rollkur
position and to differentiate it from other types of neck flexion. A number of research techniques
are available that could be used to study neck position and its effects on the horse’s performance.
This presentation will describe research techniques used in the McPhail Equine Performance Center
that could be applied to measure the angles between the vertebrae with the neck in different
positions and to assess the effects of neck position during training on other parts of the horse’s
body.
Fluoroscopy is a radiographic technique that can be used to scan the neck and measure the angles
between the cervical vertebrae with the neck in different positions. It can also be used to evaluate
patency of the airway.
The presence of the saddle precludes the use of video-based techniques to measure back motion
during ridden exercise, but it may be possible to measure thoracolumbar kinematics in ridden
horses using ShapeTape, a fibreoptic-based sensor used in people to measure shape, position,
orientation and movement of the back. Measurements from ShapeTape can be combined with
motion analysis to correlate back motion with movements of the limbs. The neck, back and limbs
are moved and stabilized by the muscular contractions, and it will be interesting to compare the
muscular activation patterns when horses are ridden with the neck in different positions using
electromyography. The overall effects of the horse’s movements and muscular contractions can be
quantified using a force plate to measure the force between the hooves pushing against the
ground.
3 1
Appendix 5 - Comments received subsequent to the Workshop
1. Paul Farrington (Veterinary Committee):
• Rollkur (Over-bending) are terms in common usage now. We should therefore address
these terms. Otherwise many people not in that meeting may consider that we avoided the
issue.
• Equally Hyperflexion is a scientific term for the full flexion of a joint, no more. I do not think
that it should be applied to a training technique.
• In order to address Rollkur we should describe hyperflexion of the head as well as of
the mid neck, because that then includes maintaining the head in a fully flexed position
also.
• I would wish to avoid the use of the word welfare from any published wording at this stage.
Nothing has been proven so far and therefore if it is used, it will only give food to others for
further argument on an ill-informed basis. Obviously that does not mean that we should not
keep any welfare implications under review.
My definition would be:
• Hyperflexion of the neck is the full flexion of the cervical vertebrae in the longitudinal plane.
• Horses can hyperflex but do not naturally maintain hyperflexion of the neck for any length
of time.
• Rollkur (Over-bending) is a training technique/tool that uses hyperflexion of the head and
mid-region of the neck.
• Although there is no evidence to date that Rollkur causes physical harm, it is recognised
that it is an advanced exercise that should only be used (for limited periods?) by an
experienced or skilled rider with a horse that has achieved a sufficient level of training.
• Rollkur can present dangers when used on a horse at a lower level of training and should
not be attempted by an inexperienced or unskilled rider.
2. Kent Allen (Medication Advisory Grup):
Two other terms need to be defined; misuse and abuse of hyperflexion of the neck:
• Misuse of the hyperflexion training technique is characterized by resistance of the horse to
the application of hyperflexion or the horse’s inability to naturally and comfortably maintain
the posture when pressure is released for a few strides. In either circumstance the rider
should discontinue the technique and pursue either veterinary evaluation of the horse’s
neck or further training in the technique;
• Abuse is the harder term to define and I'm not sure it can be done without further study.
An approach might be to use Hilary Clayton's Electromyography technique on the lower
neck muscles that Jean-Marie Denoix identified and look at time to fatigue.
3. Tony Tyler (Welfare Subcommittee):
• The evidence that Rollkur does not produce damage to the horse’s joints was based on the
radiological examination of 2 gold medal winning horses. I think it is fair to assume that a
horse winning at this level would not be in pain. There was no radiography of horses that
had been schooled using Rollkur that were failing to perform well. With almost all types of
training, some athlete’s bodies cope well and others injure. I would not be happy with the
current evidence to even suggest that it does not damage the horse only that it is more
likely that a well prepared supple horse may be able to cope with the demands of Rollkur;
• I suspect the change in name is really something for the dressage committee but I agree
with those that said we must first define Rollkur. A number of top riders have been using
Rollkur and if it was now turned into a term for abuse they could legitimately argue that
their reputations are being damaged. A change in name might well result in a new
schooling definition (hyper flexion of the neck) which becomes linked to the round and
3 2
deep method of schooling, Rollkur may continue as an exaggerated form that has still not
been fully investigated as a welfare concern;
• We must also ensure that the novice rider is very aware of the possible discomfort that
could be caused by inappropriate use of the technique. To say that it is dangerous in the
wrong hands is not sufficient to deter the amateur with delusions of their own expertise. At
a competition perhaps the opinion of two stewards that a horse is being schooled in a
manner that is likely to cause pain or serious distress could result in elimination, however
this may be too much to ask of people who are not expert riders themselves.
4. Frank Odberg (Speaker):
My concern is only the way Andrew Higgins summarised it in one sentence. I suggest : “Some
horses may be in "learned helplessness", which is a state where the organism passively undergoes
pain and stress yet are unable to react. There is a need for research to identify more accurately
that state in the horse” It is important that the problem is rectified as people may think it's some
kind of stress-induced anaesthesia in the original draft.
5. Gerd Heuschmann (Speaker):
Returning back home from Lausanne, I was more then surprised to read the FEI-statement on
horsesport.org! It felt to me a little bit, like I had not been part of that workshop at all.
I believed, we all were in good favour and realized that we have to work more intensively and
scientifically in the near future on the effects of “over-flexing” of horses in training. In your
announcement, it sounds like over-flexing or hyperflexing is fine, if done by experienced riders
over a certain time frame. That is at least, how people understand this statement. Needless to say,
that the responses I got from many countries are very negative. Your announcement did not point
out at all, that we are rejecting very much any aggressive and hard way of that method. That
would have been in my opinion a very important fact to say. The statement sounds like a general
agreement. That is not the case.
The “scientific work” of the Swiss, Dutch and Swedish group in my opinion is a big problem. I am
not doubting their measurements and those results, but I think their interpretation is wrong and
will lead us to very dangerous conclusions, which will effect the welfare and soundness of many
horses in the long run. During the meeting already, I could not understand the fact that the horses
back is supposed to have the best mobility in position 4. It took me a few days of thinking,
researching and realizing all facts:
In a loose, supple horse the back has to a certain degree its own dynamic swing which does not go
with the withers 100 %. If you make artificial tension on the neck ligament then the back ligament
will get tense as well and the back has to follow the ups and downs of the withers. This does
make a higher amplitude, but not a better mobility of the back. This cannot be the goal of correct
training of the horse. Therefore, I believe, that this study presented in Lausanne is a dangerous
and possibly misleading paper.
In my opinion it is very dangerous to relate to this study, to make up an official FEI-opinion. I
believe that the FEI should be very careful with a final statement like this. Hundreds of years of
experience cannot be so wrong!
3 3
Appendix 6 - FEI Press Release issued by Muriel Faienza on 31 Jan'06
A most productive workshop was held on 31 January 2006 at the Olympic Museum and jointly
organised by the Dressage and Veterinary Committees. The point of this meeting is to reassure the
Dressage Community that the controversial issue of Rollkur (overbending) is being addressed by
highly experienced experts from the equine world.
The workshop included presentations and reports on this controversial training technique and its
possible side-effects that may affect the welfare of the horse. It also included a review of the need
for applied research.
Approximately 60 participants, including riders, trainers, stewards, veterinarians, and members of
the Dressage, Veterinary Committees and Welfare Sub-Committee attended the workshop.
Objectives of the Forum:
- Review the techniques of training horses
- Consider possible welfare implications
- Pros and cons from experts
- Better understanding of the biomechanics and kinematics involved in this degree of neck
movement
- Reports on clinical side effects or sequelae from long term use of the technique
- Discuss possible research programmes
- Produce a report for the FEI to be able to plan the best way forward.
Further to presentations of different preliminary research projects in the field of exercise
physiology, radiology, biomechanics and schooling, the meeting reached the preliminary conclusion
that, when applied by skilled trainers, there was no scientific evidence that this training method
was abusive to the horse. There was clearly none evidence that no structural damage is created by
this training exercise, when used in the right way by expert riders.
However, the use of that technique by inexperienced people was a possible threat to the welfare of
the horse. The role of top dressage riders as role models in the sport was underlined.
Most of the participants agreed that the terminology Rollkur was not well understood and decided
it would be better to use a term which could be understood by riders, trainers and the general
public. After an extensive discussion, it was proposed that the draft wording might be hyperflexion
of the neck and a draft definition to this was established as follows:
"Hyperflexion of the neck is a technique of working/training to provide a degree of longitudinal
flexion of the mid-region of the neck. Hyperflexion cannot be self-maintained by the horse for an
extended period of time."
As far as the FEI is concerned, the welfare and humane treatment of horses at FEI competitions,
including the training areas and stables is paramount.
Next steps:
- a more detailed definition of what is to be considered as abuse is required, e.g. stress
factors, pain or discomfort.
- Education of stewards to identify possible abuse and misuse of this technique, which is
not restricted to dressage.
- Veterinary and Dressage Committee and Welfare Sub-Committee will review the state of
knowledge, submit a report of the meeting to the FEI and decide which scientific research
is further needed.
Muriel Faienza,
Communication Manager
Federation Equestre Internationale
m.faienza@horsesport.org
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