title: Biomimetic model of skeletal muscle isometric contraction: I. an energetic-viscoelastic model for the skeletal muscle isometric force twitch.
abstract: This paper describes a revision of the Hill-type muscle model so that it will describe the chemo-mechanical energy conversion process (energetic) and the internal-element stiffness variation (viscoelastic) during a skeletal muscle isometric force twitch contraction. The derivation of this energetic-viscoelastic model is described by a first-order linear ordinary differential equation with constant energetic and viscoelastic coefficients. The model has been implemented as part of a biomimetic model, which describes the excitation-contraction coupling necessary to drive the energetic-viscoelastic model. Finally, the energetic-viscoelastic model is validated by comparing its isometric force-time profile with that of various muscles reported in the literature.
authors.affiliation: Department of Biomedical, Industrial, and Human Factors Engineering, Wright State University, 204 Russ Engineering Center, Dayton, OH 45435, USA. chandler.phillips@wright.edu
authors.forename: C A
authors.initials: CA
authors.lastname: Phillips
authors.forename: D W
authors.initials: DW
authors.lastname: Repperger
authors.forename: A T
authors.initials: AT
authors.lastname: Neidhard-Doll
authors.forename: D B
authors.initials: DB
authors.lastname: Reynolds
mesh_terms: D002118:Calcium / Q000378:metabolism; D002463:Cell Membrane Permeability / Q000502:physiology; D003198:Computer Simulation; D006801:Humans; D007537:Isometric Contraction / Q000502:physiology*; D008954:Models, Biological; D018482:Muscle, Skeletal / Q000502:physiology*
chemical_list: D002118:Calcium