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TECHNICAL BRIEFS

An Instrumented Wheel for Kinetic Analysis of Wheelchair Propulsion

[+] Author and Article Information
H.-W. Wu, F.-C. Su

Institute of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan

L. J. Berglund, B. Yu, A. Westreich, K.-J. Kim, K.-N. An

Orthopedic Biomechanics Laboratory, Mayo Clinic, Rochester, MN 55905

J Biomech Eng 120(4), 533-535 (Aug 01, 1998) (3 pages) doi:10.1115/1.2798024 History: Received June 02, 1997; Revised March 03, 1998; Online October 30, 2007

Abstract

An instrumented wheel system for three-dimensional kinetic analysis of upper extremity during wheelchair propulsion has been designed and validated. This system allows the direct measurements of three-dimensional dynamic forces and moments on the handrim during wheelchair propulsion in a laboratory setting as well as in the field. Static loading tests showed a high linearity and little drift (coefficient of determination, r2 > 0.999). Under dynamic loading, the instrumented wheel provided the well-matched measurement forces and moments with the predicted values from the inverse dynamic method using video-based kinematic data (correlation coefficient, ρ > 0.97). The three-dimensional handrim forces and moments during wheelchair propulsion by a non-disabled subject were demonstrated.

Copyright © 1998 by The American Society of Mechanical Engineers
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