The Ridden Horse Pain Ethogram
Authors: Dyson S.
Journal: Equine Veterinary Education
Summary
# Editorial Summary: The Ridden Horse Pain Ethogram Dyson's 2022 development of the Ridden Horse Pain Ethogram (RHpE) provides equine professionals with a standardised 24-behaviour assessment tool for identifying musculoskeletal pain in ridden horses, addressing the clinical challenge that lameness is not always visually obvious during ridden work. The RHpE scoring system—whereby observation of eight or more behaviours within approximately 10 minutes of walking, trotting (including circles), cantering and transitions indicates likely pain—is underpinned by robust validation: the majority of these 24 behaviours are at least 10 times more prevalent in lame horses, and RHpE scores decrease markedly following diagnostic anaesthesia and resolution of lameness, establishing true causality. Critical limitations exist regarding applicability; the tool has been validated only for dressage-type work and vertically-positioned headcarriage, not for jumping, racing, western performance or endurance disciplines. Beyond direct lameness detection, the RHpE proves particularly valuable as an objective framework for identifying pain-related behaviour changes attributable to saddle fit, rider weight distribution, saddle-tree point pressure and rider balance—factors often missed by visual gait assessment alone—and offers practitioners a diplomatically neutral communication tool when discussing these management issues with clients. Effective use demands training and practice; however, the substantial clinical utility of the RHpE for pain identification, diagnostic confirmation, welfare assessment and client education makes competency in its application a worthwhile investment for farriers, veterinarians, physiotherapists and trainers.
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Practical Takeaways
- •Use the 24-behaviour RHpE checklist during 10-minute ridden assessments (walk, trot, circles, canter, transitions) to detect pain that may not appear as obvious lameness
- •A score of ≥8/24 behaviours warrants veterinary investigation for musculoskeletal issues—this tool helps identify subtle pain that affects performance and welfare
- •Check saddle fit, rider weight, and rider position on the saddle as potential contributors to pain behaviours; the RHpE provides an objective way to discuss these issues with clients without blame
Key Findings
- •The Ridden Horse Pain Ethogram comprises 24 behaviours that are at least 10 times more likely in lame horses compared to non-lame horses
- •Observation of ≥8/24 RHpE behaviours likely reflects presence of musculoskeletal pain with marked reduction after resolution via diagnostic anaesthesia
- •RHpE validity verified for dressage-type movements and vertical head position but not yet validated for jumping, racehorses, western or endurance disciplines
- •Tight saddle tree points, rider position on caudal saddle third, and rider weight influence RHpE scores; higher-skilled riders cannot obscure pain behaviours