Vo2 Max and Body Composition Had No Influence in Hdl-c Levels in Brazilian Adolescents

Abstract

The increase in HDL-C levels is commonly observed following aerobic training, depending on the exercise intensity, frequency and duration. Besides, dyslipidemia is strongly associated to overweight in adults. Aerobic capacity and body composition are components of physical fitness. The relationship between physical fitness and metabolic markers in adolescents are not as understandable as in adults due to establish the real contribution of physical activities to health in youth. PURPOSE: To compare maximum oxygen uptake (VO2 max) and body fat percentage between dyslipidemic and normolipidemic Brazilian adolescents. METHODS: Twenty-one Brazilian adolescents (17.2±0.85 years, 58.7±7.2 kg, 164.7±9.3 cm) were evaluated and divided in 2 groups. Ten were considered normolipidemic and eleven were dyslipidemic according to The International Diabetes Federation (IDF) criterion. Blood samples were collected to measure the HDL-C, ergospirometry was used to determine the VO2 max and Dual energy x-ray absorptiometry (DEXA) was selected to estimate body fat percentage. Shapiro Wilk test was used to test the normality of data. Independent Student t-test was used for the statistical comparison. RESULTS: In dyslipidemic group, VO2 max and body fat percentage were respectively 36.3±10.2 ml/kg/min and 32.4±12.2%. In the normolipidemic group the VO2 max was 41.9±7.7 ml/kg/min and body fat was 26.8±9.3%. No statistical differences were found between these two groups in both comparisons (p = 0.08 for VO2 max and p = 0.13 for body fat percentage). CONCLUSIONS: To this sample, there was no difference between groups. However, the sample was composed of only 21 subjects and the diet intake was not controlled.