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RESEARCH PAPERS

A Method for Computing the Three-Dimensional Angular Velocity and Acceleration of a Body Segment From Three-Dimensional Position Data

[+] Author and Article Information
M. C. Verstraete

Department of Biomedical Engineering, The University of Akron, Akron, OH 44325

R. W. Soutas-Little

Department of Biomechanics, Michigan State University, East Lansing, MI 48824

J Biomech Eng 112(2), 114-118 (May 01, 1990) (5 pages) doi:10.1115/1.2891161 History: Received March 29, 1989; Revised December 15, 1989; Online March 17, 2008

Abstract

A theoretical technique, based on the Method of Least Squares, was employed to solve for the three-dimensional components of the angular velocity and acceleration of a limb segment directly from experimentally recorded three-dimensional position data. Results showed that a minimum of four targets placed on the body segment, forming six relative position vector equations, were required to produce the most accurate results. It was also found that this method eliminates the errors due to soft tissue motion and system noise.

Copyright © 1990 by The American Society of Mechanical Engineers
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