Efeito de quatro semanas de treinamento com oclusão de fluxo sobre os índices de aptidão aeróbia, composição corporal e força muscular / Effect of four weeks of blood flow training in the aerobics, strength and body composition variants

AUTOR(ES)
FONTE

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia

DATA DE PUBLICAÇÃO

23/02/2012

RESUMO

The aim of this research was analyze the effect of a training realized in cycle ergometer with leg blood flow occlusion on aerobic fitness, muscular strength and body composition parameters. Participate in this study 11 apparently healthy individuals of both genders, with ages between 18 and 30 years old. Subjects performed before and after four weeks of training these tests: 1) Progressive tests to the exhaustion to determine the anaerobic threshold (LAn), maximal oxygen uptake (VO2máx), and peak power (PMAX). 2) Constant load tests until volitional exhaustion (Tlim) in the intensities of 95% and 110% of PMAX to determine the on-kinetics of VO2 (Tau) in moderate (30%PMAX) and severe (110%PMAX) domains, Critical Power (CP), 3) Tests to determine the maximum isometric force of the quadriceps muscle. 4) Measurement of anthropometric variables. During a period of 4 weeks, the experimental group (N=11) performed a total of 12 sessions of leg blood flow occlusion in cycle ergometer at a low intensity (30%PMAX) The parameters Lan (BEFORE 16052; AFTER 17757 W), PMAX (BEFORE 246 48; AFTER 26957 W), Tau30% (BEFORE 22,98; AFTER 18,45 s), Tau110% (BEFORE 43,319; AFTER 31,912 s), PC (BEFORE 18052; AFTER 19946 W), and maximal isometric strength (BEFORE 28962; AFTER 31856 N.m-1) were significantly increased after training. For the VO2max (BEFORE 1296187; AFTER 3329732 ml/min), VO2 at 30%PMAX (BEFORE 1296187; AFTER 1317220 ml/min) and anthropometric variables did not show any significantly different after training. We conclude that four weeks of leg blood flow occlusion training in cycle ergometer was able to generate changes in aerobics and neuromuscular parameters in active subjects in the similar proportions to traditional training methods. Moreover, the no effect on VO2máx whit improvements seen on the aerobic capacity and VO2 kinetcs suggest that major adaptations caused by this type of training should have been more peripheral than central factors

ASSUNTO(S)

ciclismo aptidão aeróbia força muscular oclusão de fluxo sanguíneo treinamento aeróbio educacao fisica blood flow restriction aerobic training strength aerobic fitness ciclism

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