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Biomechanics and modeling in mechanobiology
Oct, 2023;22 (5): 1499-1514.

On a three-dimensional model for the description of the passive characteristics of skeletal muscle tissue.

Fabian Walter, Robert Seydewitz, Philipp Mitterbach, Tobias Siebert, Markus Böl
Author Information
  1. Fabian Walter: Institute of Mechanics and Adaptronics, Technische Universität Braunschweig, D-38106, Braunschweig, Germany.
  2. Robert Seydewitz: Institute of Mechanics and Adaptronics, Technische Universität Braunschweig, D-38106, Braunschweig, Germany.
  3. Philipp Mitterbach: Mechanical Engineering, Eindhoven University of Technology, NLD-5612, Eindhoven, The Netherlands.
  4. Tobias Siebert: Institute of Sport and Motion Science, University of Stuttgart, D-70569, Stuttgart, Germany.
  5. Markus Böl: Institute of Mechanics and Adaptronics, Technische Universität Braunschweig, D-38106, Braunschweig, Germany. m.boel@tu-braunschweig.de.
PMID: 36550242 DOI: 10.1007/s10237-022-01664-4

Abstract

In this work, a three-dimensional model was developed to describe the passive mechanical behaviour of anisotropic skeletal muscle tissue. To validate the model, orientation-dependent axial ([Formula: see text], [Formula: see text], [Formula: see text]) and semi-confined compression experiments (mode I, II, III) were performed on soleus muscle tissue from rabbits. In the latter experiments, specimen deformation is prescribed in the loading direction and prevented in an additional spatial direction, fibre compression at [Formula: see text] (mode I), fibre elongation at [Formula: see text] (mode II) and a neutral state of the fibres at [Formula: see text] where their length is kept constant (mode III). Overall, the model can adequately describe the mechanical behaviour with a relatively small number of model parameters. The stiffest tissue response during orientation-dependent axial compression ([Formula: see text] kPa) occurs when the fibres are oriented perpendicular to the loading direction ([Formula: see text]) and are thus stretched during loading. Semi-confined compression experiments yielded the stiffest tissue ([Formula: see text] kPa) in mode II when the muscle fibres are stretched. The extensive data set collected in this study allows to study the different error measures depending on the deformation state or the combination of deformation states.

Keywords

Axial compression experiment Parameter identification Passive skeletal muscle behaviour Semi–confined compression experiment Skeletal muscle tissue model

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Grants

  1. 127753742/Deutsche Forschungsgemeinschaft

MeSH Term

Animals
Rabbits
Stress, Mechanical
Biomechanical Phenomena
Muscle, Skeletal
Muscle Fibers, Skeletal
Pressure
Journal Article

Word Cloud

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