Efeitos agudos do treinamento concorrente sobre os níveis séricos de leptina e cortisol em adultos jovens sobrepesados

Abstract

Objective: This study aimed to analyze the immediate effects of concurrent training on leptin and cortisol levels in overweighed young adults. Methods: This study used a quasi-experimental methodology. We included 20 volunteers of both sexes, randomly divided into a training competitor group (TCG n = 10) and a control group (C n = 10). Blood collection was performed in individuals at rest after fasting for 12 hours. The leptin and cortisol levels were analyzed by radioimmunoassay and chemiluminescence immunoassay before and immediately after training. Two-way ANOVA was used for statistical analysis with a significance level of p <0.05. Results: In the analysis of leptin levels, there was significant difference between groups (TCG x C) in the pre intervention (p = 0.02) and post intervention (p = 0.01). In the intra groups, no significant changes were found, and in the analysis of cortisol levels between groups (TGC x C), a significant difference in the pre intervention (p = 0.01) and post intervention (p = 0.01) was observed; however, in the intra groups there were no significant changes. Conclusion: A single concurrent training session is not sufficient to promote acute changes in the leptin and cortisol levels of the volunteer overweighed young adults in this study.

Profile of brazilian dissertations and theses about the cortisol as a stress marker

“…By analyzing the monographic research using cortisol as a marker of stress in humans, gave great representation of studies with athletes, an aspect that is also featured in the scientific literature (ARRUDA et al, 2013a;2013b;COSWIG;NEVES;DEL VECCHIO, 2013;CRUZ et al, 2012;MORAES, 2010;SILVA;MACEDO, 2011).…”

“…Cortisol levels are thus linearly related to the intensity and duration of exercise (CRUZ et al, 2012), showing a positive relationship between testosterone levels and high degree of motivation and self-confidence, while the serum cortisol relates to anxiety and stress (COSWIG; NEVES; DEL VECCHIO, 2013).…”

“…However, the characteristics of the environment are the main influencing the increase in cortisol levels and as a consequence, determine biological and psychological changes in the body of subjects (CRUZ et al, 2012;MORAES, 2010. ).…”

“…Cortisol provides fuel for the battle (fight or flight), whose aim is to increase the sugar content in the blood, so that we have energy for action (CRUZ et al, 2012;SILVA;MACEDO, 2011).…”

“…Therefore, this substance is regarded as the stress hormone, an imperative marker of this phenomenon (CRUZ et al, 2012;SILVA;MACEDO, 2011).…”