SciELO - Scientific Electronic Library Online

 
vol.14 issue6Analysis of localized muscular fatigue in athletes and sedentary subjects through frequency parameters of electromyographic signalAdaptation of the lactate minimum, critical power and anaerobic threshold tests for assessment of the aerobic/anaerobic transition in a protocol specific for table tennis author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Revista Brasileira de Medicina do Esporte

Print version ISSN 1517-8692

Abstract

SOUZA, Thiago Mattos Frota de et al. Effects of strength resistance training with high number of repetitions on maximal oxygen uptake and ventilatory threshold in women. Rev Bras Med Esporte [online]. 2008, vol.14, n.6, pp. 513-517. ISSN 1517-8692.  http://dx.doi.org/10.1590/S1517-86922008000600008.

The effects of strength training on women's cardiorespiratory capacity have not been widely established. The purpose of this study was to investigate the effects of resistance strength training with high number of repetitions on maximum oxygen uptake and ventilatory threshold in young women during 12 weeks. Twenty women, aged 21.2 + 2.7 years, were included in the study and assigned to two groups: I - resistance strength training with high number of repetitions group (TG, n = 10), and II - control group (CG, n = 10). All volunteers were submitted to the following protocol: anthropometry, cardiopulmonary testing on treadmill and 1 RM tests in the following exercises: leg-press 45º, seated leg extension, hamstring curl, bench press, lat pull-down, military press, standing barbell curls and lying barbell extension. The tests were performed before and after 12 weeks of training. Along the proposed period, the groups performed: I -TG: resistance exercises, the same of 1 RM tests, with three series of 25 repetitions, almost 30% of 1 RM; II - CG: no physical training whatsoever. CG did not show changes in the studied variables (p < 0.05). TG showed significant increase of lean mass (p < 0.05) and decrease of fat percentage (p < 0.01) and body fat (p < 0.01). There was increase in 1 RM tests in all exercises (p < 0.01) and increase of maximum oxygen uptake (p < 0.05); however, there was not change in the ventilatory threshold (p > 0.05) after 12 weeks. It is concluded that the resistance strength training with high number of repetitions improved the aerobic power of volunteers, evidenced by the increase of maximum oxygen uptake. However, the ventilatory threshold did not change.

Keywords : muscle strength; assessment; cardiorespiratory variables; physical exercise.

        · abstract in Portuguese     · text in Portuguese     · pdf in Portuguese