Open Access

ARTICLE

Mathematical Model for Skeletal Muscle to Simulate the Concentric and Eccentric Contraction

by Chetan Kuthe∗, R. V. Uddanwadiker†^†, P. M. Padole‡, A. A. Ramteke§

∗ Research Scholar. Department of Mechanical Engineering, Visvesvaraya National Institute of Technology, India. E-mail: 786Chetankuthe@gmail.com
† Assistant professor. Department of Mechanical Engineering, Visvesvaraya National Institute of Technology, India.
‡ Professor. Department of Mechanical Engineering, Visvesvaraya National Institute of Technology, India.
§ Knee & Hip Reconstruction & Replacement surgeon. Arthritis & Joint Replacement Clinic, Nagpur.

Molecular & Cellular Biomechanics 2015, 12(1), 1-16. https://doi.org/10.3970/mcb.2015.012.001

Abstract

Skeletal muscles are responsible for the relative motion of the bones at the joints and provide the required strength. They exhibit highly nonlinear mechanical behaviour and are described by nonlinear hyperelastic constitutive relations. It is distinct from other biological soft tissue. Its hyperelastic or viscoelastic behaviour is modelled by using CE, SEE, and PEE. Contractile element simulates the behaviour of skeletal muscle when it is subjected to eccentric and concentric contraction. This research aims to estimate the stress induced in skeletal muscle in eccentric and concentric contraction with respect to the predefined strain. With the use of mathematical model for contraction of skeletal muscle for eccentric and concentric contraction, the stress induced in the skeletal muscle is estimated in this research. Mathematical model is developed for the muscle using EMG signals and Force-velocity relationship calculated. With the use of force-velocity of contraction of muscle, mathematical model is developed. This can be useful to understand the mechanical behaviour of skeletal muscles in eccentric and concentric contraction with clinical relevance. Authors are further working to develop the mathematical model with torsion force with proper activation function of muscle and experimentation for extraction of the anisotropic mechanical properties of skeletal muscle.

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