Viscoelastic properties of the human sternocleidomastoideus muscle of aged women in relaxation - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of the mechanical behavior of biomedical materials Année : 2013

Viscoelastic properties of the human sternocleidomastoideus muscle of aged women in relaxation

Résumé

Improving the numerical models of the head and neck complex requires understanding the mechanical properties of the muscles; however, most of the data in existing literature have been obtained from studies on animal muscles. Muscle is hyper-elastic, but also viscoelastic. The hyper-elastic behaviour of the human sternocleidomastoideus muscle has been previously studied. The aim of this study is to propose a characterization of the viscoelastic properties of the same human muscle in relaxation. Ten muscles were tested in vitro. The viscoelastic behaviour was modelled with a generalized Maxwell's model studied at the first and second order, using an inverse approach with a subject-specific, finite-element model of each muscle. Based on these models, relaxation times τ (first order: 103 s; second order: 18 s and 395 s) and ratio moduli γ (first order: 0.33; second order: 0.20 and 0.19) were identified. The first-order model provided a good estimate of the relaxation curve (R2: 0.82), but the second-order model was more representative of the experimental response (R2: 0.97). Our results provide evidence that the viscoelastic behaviour of the human sternocleidomastoideus muscle can be described using a second-order Maxwell's model and that – combined with the previously identified hyper-elastic properties – the response of the muscle in tension and relaxation is fully characterized.

Mots clés

Dates et versions

hal-00920003 , version 1 (17-12-2013)

Identifiants

Citer

Laure-Lise Gras, David Mitton, Philippe Viot, Sébastien Laporte. Viscoelastic properties of the human sternocleidomastoideus muscle of aged women in relaxation. Journal of the mechanical behavior of biomedical materials, 2013, 27, pp. 77-83. ⟨10.1016/j.jmbbm.2013.06.010⟩. ⟨hal-00920003⟩
195 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More