Identification of human joint mechanical properties from single trial data

Author

Xu, Yangming ; Hollerbach, John M.

Author_Institution

Sarcos Res. Corp., Salt Lake City, UT, USA

Volume

45

Issue

8

fYear

1998

Firstpage

1051

Lastpage

1060

Abstract

A method is presented for estimating the time-varying compliance parameters of the elbow joint from a single movement. The method separates by frequency the perturbed from the voluntary response, then determines the parameters by exponentially weighted least squares. The tracking performance of the method is established by simulation and by a calibrated mechanical joint. Experimental results are presented on time-varying posture and slow movement.

Keywords

biomechanics; elasticity; mechanical variables measurement; medical signal processing; elbow joint; exponentially weighted least squares; human joint mechanical properties identification; single trial data; slow movement; time-varying compliance parameters; time-varying posture; Biomedical measurements; Cities and towns; Elbow; Frequency; Humans; Least squares methods; Mechanical factors; Motion measurement; Nonlinear dynamical systems; System identification; Adult; Biomechanics; Calibration; Compliance; Elbow Joint; Female; Humans; Linear Models; Male; Models, Biological; Movement; Nonlinear Dynamics; Posture; Reference Values;

fLanguage

English

Journal_Title

Biomedical Engineering, IEEE Transactions on

Publisher

ieee

ISSN

0018-9294

Type

jour

DOI

10.1109/10.704874

Filename

704874