Evaluation of the Biomechanics of Crowding and the Energetic Cost of Endurance Runners Unilateral Transtibial Amputees.

5-minute warm-up run on treadmill at a freely chosen speed

4-minute run on a treadmill with a flat incline.

4-minute run on treadmill with a 10% gradient

1 min running test on an instrumented treadmill (Gaitway, H/P/Cosmos, Nußdorf, Germany) at comfort speed.

100-metre outdoor run at a comfort speed