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

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 two-step optimisation procedure is presented for optimising the muscle-tendon parameters for isometric and isovelocity joint torque p...

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Bibliographic Details
Published inJournal of biomechanical engineering
Main Authors Heinen, Frederik, S Rensen, S Ren, King, Mark, Lewis, Martin, Lund, Morten Enemark, Rasmussen, John, de Zee, Mark
Format Journal Article
LanguageEnglish
Published United States 01.06.2019
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Summary: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 two-step optimisation procedure is presented for optimising the muscle-tendon parameters for isometric and isovelocity joint torque profiles. A significant decrease in the differences between the experimental and model-predicted joint torques was obtained for both isometric and isovelocity cases. However, only small to moderate differences between an isometric based optimisation and an isovelocity-based optimisation were observed. Depending on the specific purpose of the model, it may be beneficial to use an isometric-only rather than isovelocity-based optimisation.
ISSN:1528-8951
DOI:10.1115/1.4043356