title: Metabolic cost of level-ground walking with a robotic transtibial prosthesis combining push-off power and nonlinear damping behaviors: preliminary results.
abstract: Recent advances in robotic technology are facilitating the development of robotic prostheses. Our previous studies proposed a lightweight robotic transtibial prosthesis with a damping control strategy. To improve the performance of power assistance, in this paper, we redesign the prosthesis and improve the control strategy by supplying extra push-off power. A male transtibial amputee subject volunteered to participate in the study. Preliminary experimental results show that the proposed prosthesis with push-off control improves energy expenditure by a percentage ranged from 9.72 % to 14.99 % for level-ground walking compared with the one using non-push-off control.
authors.lastname: Yanggang Feng
authors.lastname: Jinying Zhu
authors.lastname: Qining Wang
mesh_terms: D000674:Amputees; D001186:Artificial Limbs; D001696:Biomechanical Phenomena; D004734:Energy Metabolism; D005080:Exercise Test; D006801:Humans; D008297:Male; D008875:Middle Aged; D017711:Nonlinear Dynamics; D011474:Prosthesis Design; D012371:Robotics; D019415:Torque; D016138:Walking / Q000502:physiology*