PMID: 9422454Jan 9, 1998Paper

A multisegment computer simulation of normal human gait

IEEE Transactions on Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society
L A Gilchrist, D A Winter

Abstract

The goal of this project was to develop a computer simulation of normal human walking that would use as driving moments resultant joint moments from a gait analysis. The system description, initial conditions and driving moments were taken from an inverse dynamics analysis of a normal walking trial. A nine-segment three-dimensional (3-D) model, including a two-part foot, was used. Torsional, linear springs and dampers were used at the hip joints to keep the trunk vertical and at the knee and ankle joints to prevent nonphysiological motion. Dampers at other joints were required to ensure a smooth and realistic motion. The simulated human successfully completed one step (550 ms), including both single and double support phases. The model proved to be sensitive to changes in the spring stiffness values of the trunk controllers. Similar sensitivity was found with the springs used to prevent hyperextension of the knee at heel contact and of the metatarsal-phalangeal joint at push-off. In general, there was much less sensitivity to the damping coefficients. This simulation improves on previous efforts because it incorporates some features necessary in simulations designed to answer clinical science questions. Other control algorithms...Continue Reading

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Citations

Nov 25, 2006·Biological cybernetics·Sungho Jo, Steve G Massaquoi
May 16, 2000·Journal of Biomechanics·M L Kaplan, J H Heegaard
Mar 27, 2001·Computer Methods in Biomechanics and Biomedical Engineering·R. R. NeptuneA. J. Van Den Bogert
Jul 12, 2001·Annual Review of Biomedical Engineering·M G Pandy
Jun 6, 2015·Medical & Biological Engineering & Computing·Roozbeh NaemiNachiappan Chockalingam
Jan 4, 1998·Journal of Biomechanical Engineering·D W RisherC F Runge
Jul 19, 2013·Medicine and Science in Sports and Exercise·Roozbeh Naemi, Nachiappan Chockalingam
Jul 19, 2000·Motor Control·S N WhittleseyJ Hamill

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