Efeito de diferentes protocolos de treinamento de força sobre parâmetros morfofuncionais, hormonais e imunológicos

Abstract

The purpose of this study was to assess the influence of two different resistance training protocols on the anthropometric (weight, BMI, fat mass), functional parameters (1-MR test, and maximal repetition test) and the parameters related to the endocrine system (testosterone and cortisol concentrations), as well as to the immunological system (glutamine and IgC concentrations). The study was composed by twelve trained men (27.4 ± 4.8 years), who were randomly divided in two groups that later were submitted to two different training protocols: the Multiple Series (MS), and Tri-set (TS). Blood samplings were collected before and after an resistance training session in the beginning and the end of the 8 weeks training period. It was observed no alterations in the morphofunctional parameters (except as to the maximal repetition test for the squat). As to the endocrine parameters, it was observed that the TS caused a significant increase in the cortisol immediately after the training session both in the beginning and in the end of the eight weeks (p < 0.05) period. Upon the observation of the testosterone vs. cortisol ratio (T:C) behavior, it can be observed a noticeable increase in the group submitted to the MS protocol after the 8 weeks training period (p < 0.05). As to the immunological parameters, it was observed no alterations in the concentration of the immunoglobulin G. The concentration of the glutamine suffered a decrease after 8 weeks in both groups. That decrease had a higher accentuation in the TS group (p < 0.05). Results attained suggest that the TS method imposed a higher stress to the body. Furthermore, these data also indicate that the MS protocol promotes a more propitious environment to the anabolism after the 8 weeks training period. However, both methods did not succeed in promoting significant changes in the morphofunctional parameters.