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Simulation of Antagonistic Muscle Actions Through the Use of Sliding-Mode Control Techniques

Authors:Spurgeon Sarah, University of Leicester, United Kingdom
Lister S. J., University of Leicester, United Kingdom
Scott J. A., University of Leicester, United Kingdom
Jones N. B., University of Leicester, United Kingdom
Topic:8.2 Modelling & Control of Biomedical Systems
Session:Control Application to Life Medicine II
Keywords: Biomechanics, Sliding-mode control, Human gait, Simulation,antagonism

Abstract

A sliding-mode controller is applied to a two-dimensional, ten-segment human locomotor system model in order to track kinematic gait samples. Motion tracking is performed to within 2 degrees of the references for the mean of ten samples with driving moments typically within 2 standard deviations of the expected values. The use of sliding-mode techniques also produces antagonistic muscle activity at periods similar to those measured from experimental subjects.