Treinamento em circuito de exercícios resistidos em mulheres adultas sedentárias: aumento de massa magra e redução de massa gorda sem alteração em citocinas da resposta inflamatória
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2008-03-26Autor
Ferreira, Fabiano Candido
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The exercise can elicit benefits or damage on the immunologic system
responses, depending the variables intensity or volume which must be considered. In other
hand, the protocols of resistance exercise have showed effectives to improve alterations in the
body composition. Thus, it is very important evaluate protocols of resistance exercise that can
increase the muscle mass with a decrease in fat mass without development a inflammatory
state, specially if the subjects are not athletes. In this work, we have studied the effects from a
protocol of exercise resistance in circuit on women, 39.71 ± 3.8 years old (Media ± Standard
Error). The protocol was development with intensity and a volume sufficient to elicit
alterations in body composition without important inflammatory responses even after acute
sessions of effort or any cumulative effect during the all period of training. Thus, the protocol
consisted of 3 week sessions of circuit training of 9 stations with alternate recruitment of
different muscle groups during 10 weeks. The subjects had to perform 2 times the circuit in
each session of training. Each station was realized one set of 8-12 maximal repetitions (RM)
for time. The body composition was analyzed by DXA and the inflammatory effects by
cytokines (IL1-beta; IL-6; IL-8; IL10, IL-12p70 e TNF) changes in serum. The blood samples
were collected from the anticubital vein before the sessions of training; 5 min, 24h and 48h
pos second session training; and 5 min, 24h, 48h and 96h pos the last session of period of
training. The statistical data were analyzed by test t Student application in normal
distribution and Wilcoxon test in not normal distribution. The samples of cytokines were
compared by the Friedman test with Tuckey test pos hoc (α=0,05). The results showed a
significant increased in the muscle mass and decrease in the fat mass. The serum
concentrations of cytokines no showed alterations during all the experimental period,
indicating any inflammatory effects from the protocol adopted.