Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8262129 | Experimental Gerontology | 2018 | 38 Pages |
Abstract
The aim of this study was to compare the effects of 12â¯weeks of muscle power training using one- and three-sets on neuromuscular adaptations in elderly women. Twenty six healthy elderly women were randomly assigned into two groups: one-set (nâ¯=â¯13) and three-sets (nâ¯=â¯13). Maximal dynamic and isometric strength, rapid force assessed as absolute and normalized rate of force development (RTD) and contractile impulse during unilateral leg knee extension at 0-50 and 0-200â¯ms, overall quadriceps muscle thickness, muscle power during a countermovement jump (CMJ), and functional performance using time-up-and-go and the timed stair climb tests were evaluated before and after training. After 12â¯weeks, one-set and three-sets groups exhibited significant (pâ¯â¤â¯0.05) and comparable increases in dynamic and isometric strength, absolute RTD and contractile impulse at 0-50 and at 0-200â¯ms and in the performance of both functional tests. No significant differences between groups were evident for any measured parameters (pâ¯>â¯0.05). Furthermore, the normalized RTD did not increase for any group (pâ¯>â¯0.05). Over 12â¯weeks, the muscle power training performing one- or three-sets induced alike improvements in muscle function, mass and functionally. These evidences suggest that a low training volume is able to induce significant improvements in age-related neuromuscular changes.
Keywords
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Ageing
Authors
Régis Radaelli, Clarissa M. Brusco, Pedro Lopez, Anderson Rech, Carlos L.F. Machado, Rafael Grazioli, Diana C. Müller, Eduardo L. Cadore, Ronei S. Pinto,