Estimated force and moment of shoulder external rotation muscles : differences between transverse and sagittal planes

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Deutscher übersetzter Titel:Die Bestimmung von Kraft und Drehmoment der Schultermuskulatur bei der Außenrotation : Unterschiede zwischen der transversalen und der sagittalen Ebene
Autor:Peduzzi de Castro, Marcelo; Ribeiro, Daniel Cury; Camargo Forte, Felipe de; Toledo, Joelly Mahnic de; Krug, Roberto Costa; Loss, Jefferson Fagundes
Erschienen in:Journal of applied biomechanics
Veröffentlicht:28 (2012), 6, S. 701–707, Lit.
Format: Literatur (SPOLIT)
Publikationstyp: Zeitschriftenartikel
Medienart: Gedruckte Ressource Elektronische Ressource (Datenträger)
Sprache:Englisch
ISSN:1065-8483, 1543-2688
DOI:10.1123/jab.28.6.701
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Erfassungsnummer:PU201304002656
Quelle:BISp

Abstract

The aim of this study was to compare shoulder muscle force and moment production during external rotation performed in the transverse and sagittal planes. An optimization model was used for estimating shoulder muscle force production of infraspinatus, teres minor, supraspinatus, anterior deltoid, middle deltoid and posterior deltoid muscles. The model uses as input data the external rotation moment, muscle moment arm magnitude, muscle physiologic cross-sectional area and muscle specific tension. The external rotation moment data were gathered from eight subjects in transverse and six subjects in sagittal plane using an isokinetic dynamometer. In the sagittal plane, all studied muscles presented larger estimated force in comparison with the transverse plane. The infraspinatus, teres minor, supraspinatus and posterior deltoid muscles presented larger moment in sagittal when compared with transverse plane. When prescribing shoulder rehabilitation exercises, therapists should bear in mind the described changes in muscle force production. Verf.-Referat