Document Classification

Section Type: METHODS

Text: Metabolic and mechanical power and lower-extremity EMG were measured on 14 healthy adults walking at 1. 5 m. s. Four leg-loading conditions were employed : 1) no load (NL) on the legs ; 2) a baseline load (BSLN) condition, with a mean of 2. 0 kg per leg distributed on the proximal and distal shank ; 3) a load condition with a mean of 2. 0 kg per leg distributed on the proximal and distal shank, such that lower-extremity moment of inertia was increased 5 % about the hip (MOI5) from the BSLN, but having the same lower-extremity mass as BSLN ; and 4) a load condition with a mean of 2. 8 kg per leg, concentrated proximally on the shank to increase total lower-extremity mass by 5 % (Mass5) from BSLN, but having the same moment of inertia as BSLN.