Effects of Strength and Power Training on Neuromuscular Variables in Older Adults

Effects of Strength and Power Training on Neuromuscular Variables in Older Adults

Author Wallerstein, Lilian França Google Scholar
Tricoli, Valmor Google Scholar
Barroso, Renato Google Scholar
Rodacki, Andre L. F. Google Scholar
Russo, Luciano Google Scholar
Aihara, André Yui Autor UNIFESP Google Scholar
Fernandes, Artur da Rocha Correa Autor UNIFESP Google Scholar
Mello, Marco Tulio de Autor UNIFESP Google Scholar
Ugrinowitsch, Carlos Google Scholar
Institution Universidade de São Paulo (USP)
Univ Fed Parana
Universidade Federal de São Paulo (UNIFESP)
Abstract The purpose of this study was to compare the neuromuscular adaptations produced by strength-training (ST) and power-training (PT) regimens in older individuals. Participants were balanced by quadriceps cross-sectional area (CSA) and leg-press 1-repetition maximum and randomly assigned to an ST group (n = 14; 63.6 +/- 4.0 yr, 79.7 +/- 17.2 kg, and 163.9 +/- 9.8 cm), a PT group (n = 16; 64.9 +/- 3.9 yr. 63.9 +/- 11.9 kg, and 157.4 +/- 7.7 cm), or a control group (n = 13; 63.0 +/- 4.0 yr, 67.2 +/- 10.8 kg, and 159.8 +/- 6.8 cm). ST and PT were equally effective in increasing (a) maximum dynamic and isometric strength (p < .05), (b) increasing quadriceps muscle CSA (p < .05), and (c) decreasing electrical mechanical delay of the vastus lateralis muscle (p < .05). There were no significant changes in neuromuscular activation after training. The novel finding of the current study is that PT seems to be an attractive alternative to regular ST to maintain and improve muscle mass.
Keywords cross-sectional area
electrical mechanical delay
ballistic isometric contraction
Language English
Sponsor Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Grant number CNPq: 303162/2008-2
Date 2012-04-01
Published in Journal Of Aging And Physical Activity. Champaign: Human Kinetics Publ Inc, v. 20, n. 2, p. 171-185, 2012.
ISSN 1063-8652 (Sherpa/Romeo, impact factor)
Publisher Human Kinetics Publ Inc
Extent 171-185
Origin https://doi.org/10.1123/japa.20.2.171
Access rights Closed access
Type Article
Web of Science ID WOS:000302422000003
URI http://repositorio.unifesp.br/11600/44165

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