Self-regulatory strength depletion and muscle-endurance performance : a test of the limited-strength model in older adults
Deutscher übersetzter Titel: | Abbau der selbstregulatorischen Kraft und Kraftausdauerleistung : ein Test des Kraftspeichermodells bei älteren Erwachsenen |
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Autor: | Bray, Steven R.; Martin Ginis, Kathleen A.; Woodgate, Jennifer |
Erschienen in: | Journal of aging and physical activity |
Veröffentlicht: | 19 (2011), 3, S. 177-188, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Gedruckte Ressource Elektronische Ressource (online) |
Sprache: | Englisch |
ISSN: | 1063-8652, 1543-267X |
DOI: | 10.1123/japa.19.3.177 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU201202001230 |
Quelle: | BISp |
Abstract des Autors
Self-regulation consumes a form of strength or energy. The authors investigated aftereffects of self-regulation depletion on muscle-endurance performance in older adults. Participants (N = 61, mean age = 71) were randomized to a self-regulation-depletion or control group and completed 2 muscle-endurance performance tasks involving isometric handgrip squeezing that were separated by a cognitive-depletion task. The depletion group showed greater deterioration of muscle-endurance performance than controls, F(1, 59) = 7.31, p = .009. Results are comparable to those of younger adults in a similar study and support Baumeister et al.’s limited-strength model. Self-regulation may contribute to central-nervous-system fatigue; however, biological processes may allow aging muscle to offset depletion of self-regulatory resources affecting muscle-endurance performance. Verf.-Referat