Correlation between aerobic fitness and oxidative stress biomarker in futsal players

portuguesO objetivo do trabalho surgiu da necessidade de conhecer a existencia de correlacao entre o nivel de aptidao aerobica e a producao de especies reativas de oxigenio frente a uma carga de trabalho aerobica. A amostra foi composta por atletas profissionais de Futsal do Estado de Sergipe. Foram analisadas variaveis referentes ao consumo maximo de oxigenio (VO2 max) e a producao de especies reativas de oxigenio atraves do metodo de quantificacao de substâncias reativas ao acido tiobarbiturico - TBARs. Para a analise dos dados foram utilizados os testes de correlacao de “Pearson” e o teste “t” de Student, com grau de significância de 95% para variavel dependente. Os resultados sugerem que a producao de especies reativas de oxigenio e radicais livres em repouso e inversamente proporcional (r = -0,92) ao nivel de aptidao aerobica do atleta e diretamente proporcional (r = 0,56) durante e/ou apos o exercicio. Entretanto, nao houve diferenca significativa (p > 0,05) entre os valores de TBARs no pre e pos exercicio. EnglishThe aim of the study was to verify the existence of correlation between level of aerobic fitness and the production of reactive oxygen species against an aerobic workload. The sample was composed of professional futsal players from the state of Sergipe. Variables related to maximal oxygen uptake (VO2max) and the production of reactive oxygen species were analyzed through the quantitative method of thiobarbituric acid reactive substances (TBARS). Data were analyzed using the Pearson correlation test and the student's t-test and significance level of 95% for the dependent variable. The results suggest that the production of reactive oxygen species and free radicals at rest is inversely proportional (r = -0.92) to the athlete's level of aerobic fitness and directly proportional (r = 0.56) during and / or after exercise. However, there was no significant difference (p> 0.05) between TBARS values before and after exercise.