A mechanical model and stress-strain response of the biceps brachii under static load

Hamid Asadi Dereshgi,Sema Nur Şahi̇n,Kasım Serbest,Büşra Balik

doi:10.26701/ems.1015772

Hamid Asadi Dereshgi, Sema Nur Şahi̇n + Show 2 more

Open Access

https://doi.org/10.26701/ems.1015772

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Abstract

Muscle contraction is a complex phenomenon that begins with chemical processes, continues physiologically, and leads to the production of force. Although the production of force in the muscles depends on factors such as temperature, age, gender, race, but the most important factor is the external load applied to the muscle. Determining the effects of increased load on muscle mechanics is of particular importance for planning exercise activities and rehabilitation processes. In this study, the effects of different external forces on the stress and pressure behavior of the muscle were examined on a simplified model of the biceps. Accordingly, a finite element model of the biceps brachii muscle fiber was constructed. The application of different static loads (2.5 – 100 N) on both the proximal tendon (one-directional) and the proximal and distal tendon (bidirectional) together were investigated. According to the results, it was found that the external force applied in both directions causes a significant increase in displacement behavior and stress.

Highlights

Muscle contraction is a complex phenomenon that begins with chemical processes, continues physiologically, and leads to the production of force
Musculoskeletal system consisting of bone, cartilage, muscle, tendon and connective tissue; Skeletal muscles consisting of muscle fibers with 10 to 100 micrometers thick and 1 to 30 cm long, they were placed as a layers on the bones and were connected to the bones by tendons [1, 2]
The purpose of this study was to analyze the effect of static forces applied on muscle fiber at regular intervals on muscle mechanics

Summary

Introduction

Muscle contraction is a complex phenomenon that begins with chemical processes, continues physiologically, and leads to the production of force. The Hill muscle model, which consists of three elements: the active contractile element, the serial elastic element and the parallel elastic element, reflects inactive features, mainly used to explain the behavior of the muscle and tendon [9,10]. It has been widely applied in simulations of human movement [11,12,13] and is still applied in multi-body simulations [14,15,16]. Esmaeili and Maleki (2020) with muscle coordination analysis and time-varying muscle synergy extraction from surface electromyography (sEMG) models, investigated the similarity of muscle synergies for mechanical conditions [33]

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