Can veterinarians reliably apply a whole horse ridden ethogram to differentiate nonlame and lame horses based on live horse assessment of behaviour?
Authors: Dyson S., Thomson K., Quiney L., Bondi A., Ellis A. D.
Journal: Equine Veterinary Education
Summary
# Editorial Summary Dyson and colleagues investigated whether the Ridden-Horse-Ethogram, a behavioural assessment tool previously validated on video recordings, could be reliably applied by veterinarians during real-time observation of ridden horses. Ten trained equine veterinarians and an experienced assessor scored 20 horses performing a standardised dressage test, with independent experts concurrently determining lameness status, saddle fit, epaxial muscle tension and rider competence. The ethogram demonstrated excellent inter-rater consistency (intraclass correlation 0.97) and successfully differentiated lame from nonlame horses both in real time and retrospective video analysis, with lame horses scoring significantly higher (8–16/24 versus 3–6/24 for sound horses). Notably, saddle fit, epaxial muscle pain and rider skill did not confound the behavioural scoring, suggesting the ethogram specifically reflects lameness-related movement changes rather than other performance limitations. For equine professionals involved in pre-purchase assessment, performance evaluation or monitoring of treatment outcomes, the Ridden-Horse-Ethogram offers a standardised, observer-independent method to detect musculoskeletal pain in working horses—though effectiveness depends on appropriate training and assessment during controlled movement.
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Practical Takeaways
- •The Ridden-Horse-Ethogram is a reliable, trainable assessment tool that veterinarians can use in real time during ridden evaluations to identify lame or painful horses without requiring video analysis or extended observation periods.
- •This behavioral scoring system helps differentiate true lameness from other performance issues (poor saddle fit, rider skill, or muscle tension alone), allowing you to direct diagnostic efforts more efficiently.
- •After appropriate training, any veterinarian can achieve consistent application of this ethogram, making it a practical addition to lameness examinations and potentially reducing reliance on extensive subjective observation or repeat visits.
Key Findings
- •The Ridden-Horse-Ethogram successfully differentiated between nonlame horses (scores 3-6/24) and most lame horses (scores 8-16/24) with statistical significance (P=0.017 for real-time, P=0.013 for video).
- •Ten trained veterinarians achieved excellent inter-rater consistency (ICC 0.97, P<0.001) when applying the ethogram in real time, with good agreement to expert assessor scores.
- •Epaxial muscle pain, saddle fit problems, and rider skill did not significantly confound ethogram scores, suggesting the tool specifically detects lameness-related behavioral changes.
- •Real-time application of the ethogram by the experienced assessor produced no significant difference compared to retrospective video analysis, demonstrating practical feasibility for field use.