Decrease in back strength in asymmetric trunk postures

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Bibliographische Detailangaben
Deutscher übersetzter Titel:Abnahme der Kraft der Rueckenmuskulatur bei asymmetrischen Koerperhaltungen
Autor:Vink, P.; Daanen, H.A.M.; Meijst, W.J.; Ligteringen, J.
Erschienen in:Ergonomics
Veröffentlicht:35 (1992), 4, S. 405-416, Lit.
Format: Literatur (SPOLIT)
Publikationstyp: Zeitschriftenartikel
Medienart: Gedruckte Ressource
Sprache:Englisch
ISSN:0014-0139, 1366-5847
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Erfassungsnummer:PU199207056500
Quelle:BISp

Abstract

The extension force against resistance was recorded in 23 postures for 12 subjects to find explanations for the decrease in back strength in asymmetric postures. A reduction in muscle force in asymmetric postures was found up to 40, but was strongly dependent on the plane in which asymmetry occurred, and on the posture to which it referred. A quantitative relationship between the forces exerted in different asymmetric postures is discussed, as a basis for formulating universal ergonomic guidelines for optimal working postures. The reduction in force in different asymmetric postures can be explained by length of the muscle, the activation of the muscle, and the moment angle of the muscle. Verf.-Referat