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

Gait & Posture
Jennifer M AldridgeJason M Wilken

Abstract

During stair ascent (STA) persons with transtibial amputation (TTA) typically adopt a hip strategy to compensate for the limited ankle motion and joint power that is characteristic of conventional energy storing and returning (ESR) prosthetic feet. The purpose of this investigation was to determine if providing ankle power via a powered prosthetic device (BiOM) normalized STA kinematics and kinetics. Eleven individuals with TTA participated in two STA gait analysis sessions: (1) using an ESR foot, and (2) using the BiOM. Eleven height and weight matched able-bodied controls (CONT) were also assessed. Lower extremity peak kinematic and kinetic values were calculated at a self-selected and controlled cadence (80 steps/min). Increased prosthetic limb peak ankle plantarflexion and push-up power were observed while using the BiOM as compared to ESR. Peak ankle power was not significantly different between BiOM and CONT indicating normalization of ankle power generation. However, peak ankle plantarflexion was significantly lower than CONT. Limb asymmetries including greater prosthetic limb hip flexion and power during stance, and decreased prosthetic limb knee power during stance were observed in the BiOM and ESR conditions. The resu...Continue Reading

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Citations

Apr 23, 2013·Clinical Biomechanics·Deanna H GatesJason M Wilken
Sep 13, 2014·Journal of Biomechanics·Nathaniel T PickleAnne K Silverman
Feb 20, 2014·Journal of Biomechanics·V D'AngeliA Leardini
Dec 16, 2016·PloS One·Christopher A RábagoJason M Wilken
Sep 28, 2017·Prosthetics and Orthotics International·Andrea B WanamakerAjit Mw Chaudhari
Jul 22, 2018·Journal of Biomechanical Engineering·Nicole HarperRichard Neptune
Oct 3, 2018·PM & R : the Journal of Injury, Function, and Rehabilitation·Knut LechlerKristleifur Kristjansson
Nov 13, 2019·Prosthetics and Orthotics International·Abbie E FerrisJeremy D Smith
Jan 21, 2017·Biomedical Engineering Online·Martin GrimmerAndré Seyfarth
Feb 23, 2020·Journal of Applied Physiology·Logan WadeDominic J Farris
Oct 22, 2016·Journal of Biomechanics·Nathaniel T PickleAnne K Silverman
Oct 5, 2021·The Journal of Experimental Biology·Kiisa Nishikawa, Thomas G Huck

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