title: Long-term mechanical behaviour of skeletal muscle tissue in semi-confined compression experiments.
abstract: In this study, porcine skeletal muscle tissue was tested until 112 hours post mortem using a semi-confined compression device that induces fascicles to enter one of the states of compression (mode I), tension (mode II), or constant length (mode III). Based on the authors׳ previous studies (Böl et al., 2014, 2015a), the anisotropic mechanical behaviour of the tissue was analysed, with a special focus on the testing time post mortem. The results suggest that the tissue exhibits significant anisotropic behaviour during the first hours of post mortem but that this anisotropy becomes insignificant at later time points. Interestingly, the compressibility of the tissue is more or less unaffected by the testing time. These results are discussed especially with respect to tissue microstructure.
authors.affiliation: Institute of Solid Mechanics, Technische Universität Braunschweig, 38106 Braunschweig, Germany. Electronic address: m.boel@tu-bs.de.
authors.forename: Markus
authors.initials: M
authors.lastname: Böl
authors.affiliation: Institute of Solid Mechanics, Technische Universität Braunschweig, 38106 Braunschweig, Germany.
authors.forename: Kay
authors.initials: K
authors.lastname: Leichsenring
authors.affiliation: Institute of Solid Mechanics, Technische Universität Braunschweig, 38106 Braunschweig, Germany.
authors.forename: Michael
authors.initials: M
authors.lastname: Ernst
authors.affiliation: Empa, Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland; Institute for Mechanical Systems, ETH Zurich, 8092 Zürich, Switzerland.
authors.forename: Alexander E
authors.initials: AE
authors.lastname: Ehret
mesh_terms: D000818:Animals; D016880:Anisotropy; D001696:Biomechanical Phenomena; D018482:Muscle, Skeletal / Q000502:physiology*; D011312:Pressure; D013314:Stress, Mechanical; D013552:Swine
keywords: Long-term experiments; Porcine m biceps femoris; Semi-confined compression; Skeletal muscle; post mortem