Citation

McLean CA, Ahmed AM. J. Biomech. Eng. 1993; 115(2): 144-148.

Affiliation

Department of Mechanical Engineering, McGill University, Montreal, Canada.

Copyright

(Copyright © 1993, American Society of Mechanical Engineers)

DOI

unavailable

PMID

8326720

Abstract

A dynamic knee simulator has been developed to allow in-vitro investigation of the mechanical response of the joint corresponding to dynamic functional activities, e.g., walking. In the simulator, the controlled inputs are the time-histories of three parameters of a given dynamic activity: the flexion angle, and the flexion/extension moment and tibial axial force components of the foot-to-floor reaction. A combination of stepping motors and electro-hydraulic actuators is used to apply to a knee specimen, simultaneously and independently, the specified load and/or displacement inputs while allowing unconstrained relative motion between the joint members. Satisfactory performance of the simulator has been established for walking gait conditions based on measurements on three fresh-frozen specimens.

Language: en