Effect of strength training on rate of force development in older women.
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 RPD (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.
Laboratory of Physical Activity and Aging, UNESP-Universidad Estadual Paulista.
André Luiz Demantova
AL
Gurjão
Lilian Teresa Bucken
LT
Gobbi
Nelson Hildrio
NH
Carneiro
Raquel
R
Gonçalves
Rodrigo
R
Ferreira de Moura
Edilson Serpeloni
ES
Cyrino
Leandro Ricardo
LR
Altimari
Sebastido
S
Gobbi
D000222:Adaptation, Physiological; D000368:Aged; D004576:Electromyography; D005260:Female; D006801:Humans; D008875:Middle Aged; D009119:Muscle Contraction / Q000502:physiology*; D052097:Quadriceps Muscle / Q000502:physiology; D055070:Resistance Training