Muscle moment-arms: a key element in muscle-force estimation.

Détails

ID Serval
serval:BIB_D9EDB5A0BF5A
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Muscle moment-arms: a key element in muscle-force estimation.
Périodique
Computer Methods in Biomechanics and Biomedical Engineering
Auteur(s)
Ingram D., Engelhardt C., Farron A., Terrier A., Müllhaupt P.
ISSN
1476-8259 (Electronic)
ISSN-L
1025-5842
Statut éditorial
Publié
Date de publication
2015
Peer-reviewed
Oui
Volume
18
Numéro
5
Pages
506-513
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Résumé
A clear and rigorous definition of muscle moment-arms in the context of musculoskeletal systems modelling is presented, using classical mechanics and screw theory. The definition provides an alternative to the tendon excursion method, which can lead to incorrect moment-arms if used inappropriately due to its dependency on the choice of joint coordinates. The definition of moment-arms, and the presented construction method, apply to musculoskeletal models in which the bones are modelled as rigid bodies, the joints are modelled as ideal mechanical joints and the muscles are modelled as massless, frictionless cables wrapping over the bony protrusions, approximated using geometric surfaces. In this context, the definition is independent of any coordinate choice. It is then used to solve a muscle-force estimation problem for a simple 2D conceptual model and compared with an incorrect application of the tendon excursion method. The relative errors between the two solutions vary between 0% and 100%.
Pubmed
Web of science
Création de la notice
07/03/2014 23:16
Dernière modification de la notice
03/03/2018 21:53
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