Computational modelling of limb loads from galloping horses on different tracks

Musculoskeletal injuries in racehorses are commonly caused by repeated high magnitude loading generated during galloping that results in deterioration of musculoskeletal tissues through tissue fatigue. A comprehensive computational forelimb musculoskeletal model has been developed that enables the measurement of loads within tendons and ligaments and on joint surfaces of horses moving on a treadmill. This model has been used to estimate loads in the forelimbs of horses galloping on a racetrack and and is being extended into a full body dynamic model.

In this project we propose applying the model to investigate the effect of different track surfaces on loads in the limb. Using three thoroughbred horses in race training we will collect gait data for galloping on the treadmill and at the race track on both sand and synthetic surfaces. These data will complement further development of the model to include track surfaces. Subsequent model interrogation will assess the properties of track surfaces that effect loads in the limbs of galloping horses. Findings will inform decision making on best practice track installation and maintenance in order to minimise musculoskeletal injury risk.