Stair ascent kinematics and kinetics with a powered lower leg system following transtibial amputation

Highlights ► Eleven individuals with unilateral transtibial amputation were assessed using conventional and powered prostheses. ► We determined if increasing ankle power normalized lower limb kinematics and kinetics during stair ascent. ► The powered device demonstrated greater ankle power generation and plantarflexion during stair ascent. ► Deviations from normal stair ascent gait persisted at the hip and knee despite changes in ankle kinematics and kinetics. ► Additional device specific training may be necessary to utilize the full benefits of a powered device.