Effect of strength training on rate of force development in older women

• Autor(a) principal: Gurjão, André Luiz Demantova [UNESP]
• Data de Publicação: 2012
• Outros Autores: Gonçalves, Raquel [UNESP], Gobbi, Sebastião [UNESP], Gobbi, Lilian Teresa Bucken [UNESP], Carneiro, Nelson Hilário, Ferreira de Moura, Rodrigo, Cyrino, Edilson Serpeloni, Altimari, Leandro Ricardo
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.1080/02701367.2012.10599857; http://hdl.handle.net/11449/234490
• topic: Aging; Muscle activation; Neuromuscular performance; Resistance training

We analyzed the effect of an 8-week strength training (ST) program on the rate of force development (RFD) and electromyographic activity (EMG) in older women. Seventeen women (M age = 63.4 years, SD = 4.9) without previous ST experience were randomly assigned to either a control (n = 7) or training (n = 10) group. A leg-press isometric test was used for assessment. ST (three sessions/week, three sets of 10–12 repetition maximum, five different exercises) induced significant increases (p < .05) on peak RFD (48.4%) and on RFD and EMG of vastus medialis at time intervals of 0–50, 0–100, 0–150, and 0–200 ms (41.1–69.2% and 43.8– 64.3%, respectively). Therefore, ST resulted in favorable changes in neuromuscular responses in older women. © 2012 by the American Alliance for Health, Physical Education, Recreation and Dance.