Kinematic knee load model corresponding to muscular tension for noncontact measurement

This paper proposes a kinematic knee load model corresponding to variation of actual muscular tension for noncontact measurement of the load. The proposed model estimates knee load based only on kinematic data, i.e. time series of joint center positions, which are obtained from noncontact measurement such as imagery measurement. The correspondence was confirmed through experiments by using cross-correlation function between the knee load estimated with the proposed model and another one estimated from electromyographic signals collected from muscles of the thigh.