Biomechanical Evaluation of Russian BD-1 Treadmill during Non-Motorized Treadmill Locomotion in a Weightless Environment (KC-135)

1) To measure the average speeds maintained by subjects and compare this with the corresponding target speeds. 2) To measure the external load (EL) provided by the bungee loading system and determine the load dependence on body size. 3) To measure subject ground reaction force (GRF) in weightlessness and compare this with ground reaction force in normal gravity.