title: Myoelectric control of a powered knee prosthesis for volitional movement during non-weight-bearing activities.
abstract: This paper describes a means of controlling the knee movement of a powered knee prosthesis during non-weight-bearing activity such as sitting, by utilizing surface EMG from the quadriceps and hamstring muscle groups in the residual limb. The method was implemented on a powered prosthesis on three amputee subjects, and experimental results are presented characterizing the ability of the amputee subjects to control knee motion. A comparison of the trajectory tracking error between the amputees' prosthetic and intact knees indicates that the EMG-based volitional controller provides similar trajectory tracking capability to the native (i.e., intact) knee joint.
authors.affiliation: Department of Mechanical Engineering, Vanderbilt University, Nashville, TN 37235, USA. kevin.h.ha@vanderbilt.edu
authors.forename: Kevin H
authors.initials: KH
authors.lastname: Ha
authors.forename: Huseyin Atakan
authors.initials: HA
authors.lastname: Varol
authors.forename: Michael
authors.initials: M
authors.lastname: Goldfarb
mesh_terms: D000672:Amputation Stumps / Q000503:physiopathology*; D000674:Amputees / Q000534:rehabilitation*; D001676:Biofeedback, Psychology / Q000379:methods*; D004576:Electromyography / Q000379:methods; D007719:Knee Joint / Q000503:physiopathology*; D007720:Knee Prosthesis; D009068:Movement; D009119:Muscle Contraction; D018482:Muscle, Skeletal / Q000503:physiopathology*; D014836:Volition; D016474:Weight-Bearing