MODELLING AND SIMULATION OF MUSCLE MECHANICS FOR BIOMECHANICAL APPLICATIONS IN SIMULINK

Abstract

Muscle is the power-producing organ in the body and its contraction results in the movement of body organs hence providing fuel for work. These muscles are composed of actin and myosin combined to form a sarcomere. The sarcomere shortens and elongates to cause contraction and relaxation of muscles. Hill analysed this function of muscles and proposed a mathematical model of the force exertion of muscle. The equation elaborates on two contractions occurring in muscles: Isotonic and Isometric. For Isometric contraction, it is stated that the length of the muscle remains the same throughout the force-production mechanism, hence more force is produced. The 1-D Muscle Model is designed as a mechanical system in MATLAB Simulink, elaborating on the results of Isometric Contraction in muscles using Hill’s Equation. The model also elaborates on muscle mechanics in a 1-D environment. The research builds upon computational approaches like Virtual Muscle, which explores how muscle properties fundamentally influence motor control and biomechanical performance.