New research presented at the British Society of Animal Science (BSAS) 2025 Conference highlighted the potential effects of rug layering on horses’ stride length – raising important questions about the possibility of its impact on musculoskeletal health and performance.
The preliminary study, titled A Preliminary Study Investigating the Effect of Rug-Wearing on Measured Stride Length in Horses, was conducted by McTimoney Animal Chiropractor and BHSI, Melissa Troup, alongside colleagues from the McTimoney College of Chiropractic.
The study examined 12 riding school horses to assess how wearing no rug, one rug, or two rugs affected stride length, and the effect of rug layering over a 28-day period. Horses were split into two groups:
- Group 1 wore one 200g turnout rug for 28 days; and
- Group 2 wore two 100g turnout rugs, layered, for 28 days.
Stride measurements were taken at Day 0 when horses wore no rug, one rug and two rugs, and again at Day 28, using digital video and Kinovea software. The results showed that stride length significantly decreased as the number of rugs increased
After a 28-day period, there was a significant reduction in stride length for Group 2 horses; in contrast to Group 1’s stride length, which remained similar to day 0 measurements.
“This is embryonic research into the effect that layering rugs can have on the horse’s stride length,” said Ms Troup. “Inevitably, it has raised more questions, and I hope this will motivate further studies in the future.”
Layering rugs for warmth is common practice, and this research provides data for consideration among horse owners when making rugging decisions.
Ms Troup added: “Understanding the biomechanical implications of rug use can help owners make more informed choices to support their horses’ comfort and wellbeing.”
