Autor(es):
Pereira, A. 
; Silva, A.J. ; Costa, A. ; Monteiro, A.M. ; Marques, M.C.
Data: 2012
Identificador Persistente: http://hdl.handle.net/10198/10461
Origem: Biblioteca Digital do IPB
Detalhes do Documento
Effect of high-speed power training on improving muscular and functional perfor...
Descrição
Introduction In older populations, maintenance of muscle power output is a key factor in everyday task performance, such as climbing stairs, rising from a chair and walking, as well as in decreasing the likelihood of falls, especially in women (Häkkinen et al., 1998; Izquierdo et al., 2001). The purpose of the study was to examine the effects of 12 weeks high-speed power training on maximal strength (1RM) and functional tasks of the arm and leg muscles (sit-to-stand and get-up and go) (Pereira et al., 2012). Methods Twenty-four women were assigned randomly to a control group (CG) (n=12, 63.3 ± 5.9) and an experimental (EG) (n=12, 60.3 ± 9.3). The experimental group was subjected to three sessions /week of strength training for 12 weeks). The control group did not do any physical activity. Data collection were in the pretest (T1) and post-test (T12). The evaluation consisted of strength exercises: 1-repetition maximum bench press (1RMBP), 1-repetition maximum in leg extension (1RMLE) and tests that evaluated the functional fitness: sit and stand up - 30 sec. (ST) and ’go up and go’ (GUG), both the battery of tests Rikly & Jones (1999). The training plan consisted of bench press exercise (BP) and bilateral leg extension (LE) with progressive loads (40% -75%) and performing abdominal (3x12) and lumbar (3x10). Results During 12-weeks of highspeed power training, CG showed significant decreases in the test ST (-12.2%, p = 0.029). For the EG, improvements were observed in the tests 1RMBP (38.6%, p = 0.001), 1RMLE (24.6% p = 0.00) and ST (17.1%, p = 0.003). Although GUG test decrease in execution time of the course, but this was not significant (-4.3%, p = 0259). Discussion A program of strength training with maximum speed during the concentric phase allows significant gains in increased levels of strength in upper and lower limbs. Moreover, this approach contributes to the increased mobility and functional autonomy, as well as increasing neuromuscular coordination and power, which in old age seem to contribute significantly to reducing the risk of falls and consequently to increase functional independence and quality of life. Conclusion These data indicate that high-speed power training is an effective exercise approach leading to large gains in upper and lower extremity muscle performance and function capacity.
Introduction In older populations, maintenance of muscle power output is a key factor in everyday task performance, such as climbing stairs, rising from a chair and walking, as well as in decreasing the likelihood of falls, especially in women (Häkkinen et al., 1998; Izquierdo et al., 2001). The purpose of the study was to examine the effects of 12 weeks high-speed power training on maximal strength (1RM) and functional tasks of the arm and leg muscles (sit-to-stand and get-up and go) (Pereira et al., 2012). Methods Twenty-four women were assigned randomly to a control group (CG) (n=12, 63.3 ± 5.9) and an experimental (EG) (n=12, 60.3 ± 9.3). The experimental group was subjected to three sessions /week of strength training for 12 weeks). The control group did not do any physical activity. Data collection were in the pretest (T1) and post-test (T12). The evaluation consisted of strength exercises: 1-repetition maximum bench press (1RMBP), 1-repetition maximum in leg extension (1RMLE) and tests that evaluated the functional fitness: sit and stand up - 30 sec. (ST) and ’go up and go’ (GUG), both the battery of tests Rikly & Jones (1999). The training plan consisted of bench press exercise (BP) and bilateral leg extension (LE) with progressive loads (40% -75%) and performing abdominal (3x12) and lumbar (3x10). Results During 12-weeks of highspeed power training, CG showed significant decreases in the test ST (-12.2%, p = 0.029). For the EG, improvements were observed in the tests 1RMBP (38.6%, p = 0.001), 1RMLE (24.6% p = 0.00) and ST (17.1%, p = 0.003). Although GUG test decrease in execution time of the course, but this was not significant (-4.3%, p = 0259). Discussion A program of strength training with maximum speed during the concentric phase allows significant gains in increased levels of strength in upper and lower limbs. Moreover, this approach contributes to the increased mobility and functional autonomy, as well as increasing neuromuscular coordination and power, which in old age seem to contribute significantly to reducing the risk of falls and consequently to increase functional independence and quality of life. Conclusion These data indicate that high-speed power training is an effective exercise approach leading to large gains in upper and lower extremity muscle performance and function capacity.
Tipo de Documento
Documento de conferência
Idioma Inglês
Idioma Inglês
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