Authors: Gurjão, André Luiz Demantova; Gobbi, Lilian Teresa Bucken; Carneiro, Nelson Hilário; Gonçalves, Raquel; de Moura, Rodrigo Ferreira; Cyrino, Edilson Serpeloni; Altimari, Leandro Ricardo; Gobbi, Sebastião

Source: Research Quarterly for Exercise and Sport, Volume 83, Number 2, June 2012 , pp. 268-275(8)

Publisher: American Alliance for Health, Physical Education, Recreation & Dance

Abstract:

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.

Keywords: AGING; MUSCLE ACTIVATION; NEUROMUSCULAR PERFORMANCE; RESISTANCE TRAINING

Document Type: Research article

DOI: http://dx.doi.org/10.5641/027013612800745095

Publication date: 2012-06-01

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