A horse's locomotor signature: COP path determined by the individual limb.
Authors: Nauwelaerts Sandra, Hobbs Sarah Jane, Back Willem
Journal: PloS one
Summary
# Editorial Summary Understanding how asymmetric hoof conformation affects weight distribution during movement is crucial for farriers and veterinarians seeking to optimise performance and prevent injury. Nauwelaerts and colleagues examined the centre of pressure (COP) pathway—essentially how load travels across the solar surface during stance—in sound horses exhibiting anatomical differences between their forelimbs, specifically variations in dorsal wall angle. Their findings revealed that systematic differences in hoof conformation directly correlate with measurable asymmetries in the COP path between limbs, alongside corresponding changes in braking force timing and magnitude during the stance phase. These results demonstrate that the horse's locomotor signature—its unique pattern of load distribution—is determined by individual limb anatomy, and importantly, that this COP pattern is repeatable within the same horse. For practitioners, this work provides objective evidence that asymmetric hoof angles are not merely cosmetic variations; they actively reshape how forces are distributed during movement, with potential implications for managing asymmetrical loading, tailoring corrective shoeing strategies, and identifying subclinical movement compensations before they develop into pathology.
Read the full abstract on PubMed
Practical Takeaways
- •Hoof asymmetries create measurable, repeatable changes in how forces are distributed under the hoof during movement—this provides objective data to guide farriery corrections
- •COP path analysis can identify which limb has loading imbalances, helping target therapeutic interventions more precisely
- •The repeatability of these measurements means you can use COP path to track whether your farriery adjustments are actually changing the biomechanics as intended
Key Findings
- •Ground reaction forces differ systematically between asymmetric forelimbs in horizontal braking force and relative timing of break-over
- •Center of Pressure (COP) path quantifies dynamic load distribution under the hoof during movement
- •Anatomical asymmetry (dorsal wall angle difference) correlates with asymmetry in COP path between limbs
- •COP path shows repeatability across repeated measurements in individual horses