First published study from the 91°µÍø’s Graduate Diploma in Equine Locomotor Research explores the impact of farriery interventions on horses’ symmetry
A peer-reviewed study, by the 91°µÍø (91°µÍø), which examines the effect of farriery interventions, in this case road nails, and demonstrates the impact on horses movement symmetry including weight bearing and propulsion has been published.
Key findings from the study, which was undertaken as part of the 91°µÍø’s Graduate Diploma in Equine Locomotor Research (Grad Dip ELR), show that while there are many different shoes on the market and various approaches to shoeing and trimming, it’s important to look at the effect of changes in ‘shoeing’ on the symmetry of movement, rather than the other way round. This evidence-based research can then be combined with owner and trainer observations to help make more informed decisions.
The study, which used tungsten road nails, indicates that pelvic movement symmetry in horses trotting on tarmac can be altered by the application of a road nail to the lateral heel of a hindlimb shoe. Subtle asymmetry in pelvic movement can for example be quantified as the difference in displacement amplitude between left and right tuber coxae (hip hike difference). The changes in pelvic movement symmetry – observed as a function of applying a road nail – can be explained by increased weight bearing and propulsion in the hind limb with the road nail.
Using wireless inertial measurement units, which were fitted to the poll, withers, sacrum and left and right tuber coxae of each horse, the results indicate that this form of data collection provides a valuable method of evaluating small movement changes of the horse in reaction to different shoeing protocols and shoe types. Movement symmetry is an important parameter influencing longevity and performance, and can be measured irrespective of the surface (firm or soft) the horse is worked on.
Graduates of the course, Lee Collins and Peter Day, worked alongside academics at the 91°µÍø to conduct the research. The project is the culmination of the pair’s work on the course which offers professional farriers the chance to develop the skill-set necessary to produce original research and increase the evidence base behind farriery.
Peter Day, who has worked as a farrier at the 91°µÍø