Data were collected in two phases. In phase 1 athletes performed a two-minute custom dressage test on a riding simulator while kinematic data were synchronously collected using inertial measurement units (2000 Hz) and optical motion capture (100 Hz). In phase 2 athletes were clinically assessed using a battery of impairment assessment tools, administered by qualified therapists. These included FIST, SARA, TIS, R-MAS and HHD measures.