Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/32566
Title: Active finite element analysis of skeletal muscle-tendon complex during isometric, shortening and lengthening contraction
Authors: Tsui, CP 
Tang, CY 
Leung, CP
Cheng, KW 
Ng, YF 
Chow, DHK
Li, CK
Keywords: Active finite element
isometric contraction
lengthening contraction
shortening contraction
skeletal muscle
Issue Date: 2004
Publisher: IOS Press
Source: Bio-medical materials and engineering, 2004, v. 14, no. 3, p. 271-279 How to cite?
Journal: Bio-medical materials and engineering 
Abstract: An active finite element model was developed to predict the mechanical behaviors of skeletal muscle-tendon complex during isometric, shortening and lengthening contraction. The active finite element was created through incorporation of a user-defined material property into ABAQUS finite element code. The active finite element is controlled by a motor element that is activated by a mathematical function. The nonlinear passive behavior of the muscle was defined by the viscoelastic elements and can be easily altered to other properties by using other elements in the material library without the need of re-defining the constitutive relation of the muscle. The isometric force-length relationship, force-strain relations of the muscle-tendon complex during both shortening and lengthening contraction and muscle relaxation response were predicted using the proposed finite element model. The predicted results were found to be in good agreement with available experimental data. In addition, the stress distribution in the muscle-tendon complex during isometric, shortening and lengthening contractions was simulated. The location of the maximum stress may provide useful information for studying muscle damage and fatigue in the future.
URI: http://hdl.handle.net/10397/32566
ISSN: 0959-2989
EISSN: 1878-3619
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