Muscle-tendon unit parameter estimation of a Hill-type musculoskeletal model based on experimentally obtained subject-specific torque profiles

Frederik Heinen, Søren Sørensen, Mark King, Martin Lewis, Morten Enemark Lund, John Rasmussen, Mark de Zee

Research output: Contribution to journalJournal articleResearchpeer-review

1 Citation (Scopus)

Abstract

The aim of this study was to generate a subject-specific musculoskeletal muscle model, based on isometric and isovelocity measurements of the whole lower extremity. A twostep optimization procedure is presented for optimizing the muscle-tendon parameters (MTPs) for isometric and isovelocity joint torque profiles. A significant improvement in the prediction of joint torque profiles for both the solely isometric and a combined isometric and dynamic method of optimization when compared to the standard scaling method of the AnyBody Modeling System (AMS) was observed. Depending on the specific purpose of the model, it may be worth considering whether the isometric-only would be sufficient, or the additional dynamic data are required for the combined approach.

Original languageEnglish
Article number061005
JournalJournal of Biomechanical Engineering
Volume141
Issue number6
Number of pages9
ISSN0148-0731
DOIs
Publication statusPublished - 1 Jun 2019

Keywords

  • hill-muscle model
  • muscle-tendon parameters
  • optimization
  • subject-specific model

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