| Measuring muscle and joint geometry parameters of a shoulder for modeling purposes. | |
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MedLine Citation:
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PMID: 10541069 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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An extensive set of muscle and joint geometry parameters was measured of the right shoulder of an embalmed male. For all muscles the optimal muscle fiber length was determined by laser diffraction measurements of sarcomere length. In addition, tendon length and physiological cross-sectional area were determined. The parameter set was needed to enhance the reliability of a computer model of the shoulder (Van der Helm, 1994a,b Journal of Biomechanics 27, 527-550, 551-569). With the model, an abduction of the arm was simulated in seven positions, at 30 degrees intervals. In each of the simulated arm positions, actual sarcomere lengths were calculated from the lengths of 104 muscle elements, distributed over 16 shoulder muscles. For most muscle elements, the simulated abduction appeared to take place within the sarcomere length range in which the muscle elements can exert force. The muscle elements can then act on the ascending limb as well as on the plateau and on the descending limb of the relative force-length curves of sarcomeres. The produced data set is not only important for the refinement of shoulder modeling, but also for functional analyses of shoulder movements in general. |
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Authors:
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M D Klein Breteler; C W Spoor; F C Van der Helm |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of biomechanics Volume: 32 ISSN: 0021-9290 ISO Abbreviation: J Biomech Publication Date: 1999 Nov |
Date Detail:
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Created Date: 1999-11-23 Completed Date: 1999-11-23 Revised Date: 2009-11-11 |
Medline Journal Info:
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Nlm Unique ID: 0157375 Medline TA: J Biomech Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 1191-7 Citation Subset: IM; S |
Affiliation:
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Nijmegen Institute for Cognition and Information, The Netherlands. kleinbreteler@nici.kun.nl |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Cadaver Humans Humerus / anatomy & histology, physiology Ligaments, Articular / anatomy & histology, physiology Male Middle Aged Models, Anatomic Models, Biological* Muscle, Skeletal / anatomy & histology, physiology* Posture / physiology* Range of Motion, Articular / physiology Sarcomeres / physiology Shoulder / anatomy & histology, physiology* Shoulder Joint / anatomy & histology, physiology |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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