 Each of six amputees' affected leg performance was compared against that of their biological leg.The team measured leg swing times and force applied to the running surface on a high-speed treadmill at the Biomechanics Laboratory of the Orthopedic Specialty Hospital, and also studied video of sprint runners from the Olympics and Paralympics.They found no difference in leg swing times at different speeds, and recorded leg swing times similar to that of non-disabled sprinters.