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Shortening-induced residual force depression in humans

Chen, Jackey ; Hahn, Daniel ; Power, Geoffrey A

Journal of applied physiology (1985), 2019-04, Vol.126 (4), p.1066-1073 [Periódico revisado por pares]

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Título:
Shortening-induced residual force depression in humans
Autor: Chen, Jackey ; Hahn, Daniel ; Power, Geoffrey A
Assuntos: Isometric exercise ; Muscle contraction ; Muscles ; Muscular function ; Reduction
É parte de: Journal of applied physiology (1985), 2019-04, Vol.126 (4), p.1066-1073
Notas: ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-3
content type line 23
ObjectType-Review-1
Descrição: When an isometric muscle contraction is immediately preceded by an active shortening contraction, a reduction in steady-state isometric force is observed relative to an isometric reference contraction at the same muscle length and level of activation. This shortening-induced reduction in isometric force, termed "residual force depression" (rFD), has been under investigation for over a half century. Various experimental models have revealed the positive relationship between rFD and the force and displacement performed during shortening, with rFD values ranging from 5 to 39% across various muscle groups, which appears to be due to a stress-induced inhibition of cross-bridge attachments. The current review will discuss the findings of rFD in humans during maximal and submaximal contractions.
Editor: United States: American Physiological Society
Idioma: Inglês

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