A continuum model for skeletal muscle contraction at homogeneous finite deformations
2013 (English)In: Biomechanics and Modeling in Mechanobiology, ISSN 1617-7959, E-ISSN 1617-7940, Vol. 12, no 5, 965-973 p.Article in journal (Refereed) Published
The contractile force in skeletal muscle models is commonly postulated to be the isometric force multiplied by a set of experimentally motivated functions which account for the muscle’s active properties. Although both flexible and simple, this approach does not automatically guarantee a thermodynamically consistent behavior. In contrast, the continuum mechanical model proposed herein is derived from fundamental principles in mechanics and guarantees a dissipative behavior. Further, the contractile force is associated with a friction clutch which provides a simple and well-defined macroscopic model for cycling cross-bridges. To show the performance of the model, it is specialized to standard experiments for rabbit tibialis anterior muscle. The results show that the model is able to capture important characteristics of skeletal muscle.
Place, publisher, year, edition, pages
Springer, 2013. Vol. 12, no 5, 965-973 p.
Skeletal muscle, Contractile element, Dissipation inequality, Strain-energy function, Continuum model
Other Mechanical Engineering
IdentifiersURN: urn:nbn:se:liu:diva-85805DOI: 10.1007/s10237-012-0456-xISI: 000324378900008OAI: oai:DiVA.org:liu-85805DiVA: diva2:572715
FunderSwedish Research Council