Modeling and simulating the deformation of human skeletal muscle based on anatomy and physiology

Robson R. Lemos*, Jon Rokne, Gladimir V.G. Baranoski, Yasuo Kawakami, Toshiyuki Kurihara

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


This paper describes the modeling and simulation of the deformation of human skeletal muscle at different structural levels based on sound scientific principles, experimental evidence, and state-of-art muscle anatomy and physiology. The equations of a continuum model of a muscle with realistic architecture, including internal arrangement of muscle fibers and passive structures, and deformation, including activation relations, was developed and solved with the finite element method. The continuum model is used as the basis of a strategy for controlling muscle deformation using activation relations. In order to demonstrate the functionality of the model, it was used to investigate force production and structural changes during contraction of the human tibialis anterior for maximally and submaximally activated muscle behavior. From a comparison with experimental data obtained from ultrasound imaging, we concluded that the modeling and simulation of the continuum based on physiologically meaningful parameters as described in the paper is both an excellent predictor of force production observations and of changes in internal geometry under various test conditions. It is therefore a valuable tool for controlling muscle deformation during movement.

Original languageEnglish
Pages (from-to)319-330
Number of pages12
JournalComputer Animation and Virtual Worlds
Issue number3-4
Publication statusPublished - 2005 Jul 1


  • Medical three-dimensional simulation
  • Physically-based muscle modeling

ASJC Scopus subject areas

  • Software
  • Computer Graphics and Computer-Aided Design


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