Correlação entre nível de atividade física e composição Corporal em adolescentes

Abstract

Aim: Test whether there is a correlation between the level of physical activity (LPA) and body composition in adolescents. As well as, to test if there are differences, for these variables, between students from public and private schools. Methods: A total of 104 adolescents (16.4 ± 2.0 years old; 64.2 ± 13.1 kg; 163.7 ± 7.6 cm) participated in the study, of which 62.5% are females. To quantify the LPA, the physical activity questionnaire for adolescents was applied, and later, the data were obtained for the calculation of body mass index (BMI) and body fat percentage (FP%). Spearman correlation was applied (p≤ 0,05). For comparison between public and private school students, we used the standardized mean differences (SMD), confidence interval (CI = 90%) and effect size. Results: There was no significant correlation between LPA and BMI (p= 0.633; p= 0.081, boys and girls, respectively) and FP% (p= 0.864; p= 0.218, boys and girls, respectively). There were no substantial differences between public and private school students. Conclusions: The absence of correlation between LPA and body composition points to the multifactorial character that perpasses the association between these two aspects in the young population