Impacto de um programa de treino combinado de alta intensidade nos níveis plasmáticos de adiponectina e IL-6 de adolescentes com sobrepeso

Abstract

Introduction: Overweight and obesity is a global concern due to the multiplicity of underlying complications. Its prevalence has been increasing even among children and adolescents, who are at increased risk of becoming obese in adulthood. Much of the complications of obesity have an etiology associated with the pro-inflammatory environment that occurs through a high plasma concentration of pro-inflammatory markers, and obesity is already characterized by a chronic low-grade inflammation state. Regular practice of exercise during adolescence may prevent future complications induced by obesity, in part because of its anti-inflammatory properties. However understanding how exercise influences the regulation of the release of inflammatory markers is a relevant topic that still lacks gaps, namely on the type of exercise most appropriate to maximize the benefits. Objective: The purpose of this study was to evaluate the impact of a short-term training program, performed in high-intensity and combined circuits (aerobic and strength exercises), inflammatory markers and body composition of overweight adolescents. Material and methods: The sample consisted of 10 adolescents (16.7 ± 0.95 years and 28.86 ± 3.7 kg / m 2) who completed 10 weeks of a combined training program (high intensity circuit; days / week, 60min./day). Participants made the following evaluations at the beginning and at the end of the training protocol: body weight, body mass index (BMI), waist circumference (CA),% body fat, fat mass (MG) and lean mass by Tanita), plasma levels of IL-6 and adiponectin (assessed by slot blot). Results: The intervention led to a significant reduction in weight (-2.39%), BMI (-2.29%), CA (-4.86%),% Fat (-11.49), MG (-14 , 81%) and a significant increase in muscle mass (+ 4.32%) (P <0.05 vs. the beginning of the program). There were no significant changes in adiponectin (+ 15.27%, P> 0.05) and, in relation to IL-6, there was a significant increase (+ 16.07%, P <0.05 vs. program start). Conclusion: Our study indicates that combined training in a circuit of high intensity of short duration significantly improved body composition. Despite the absence of alterations in adiponectin, a significant increase in IL-6 may have a beneficial influence as a result of increased muscle mass.