Effects of a Powered Knee-Ankle Prosthesis on Intact Joint Biomechanics Across Sustained Activities of Daily Life

This dataset contains joint kinematics and kinetics from an experimental protocol approved by the Institutional Review Board at the University of Michigan. This data was collected to evaluate the intact lower-limb joint biomechanics when using a passive knee-ankle versus when using a powered knee-ankle device (E.G. Keller, C.A. Laubscher, and R.D. Gregg, \Effects of a Powered Knee-Ankle Prosthesis on Intact Joint Biomechanics Across Sustained Activities of Daily Life,\ under review). Three above-knee amputees traversed a circuit that included sit-to-stand, stand-to-sit, level-ground walking, ramp ascent, ramp descent, stair ascent, and stair descent (kinetics not available for ramp portions due to lack of force plates). Subjects traversed the circuit continuously and repeatedly until failure. During each data collection, a 26-camera Vicon motion capture system recorded leg kinematics, while force plates throughout the circuit recorded ground reaction forces. The collected data is divided into laps and contains data for heel strikes and activities. Gait kinetics have been normalized by user mass.