Meta-analysis was used to systematically evaluate the effects of high-intensity interval training (HIIT) and continuous aerobic training (CAT) on adolescents' body composition and cardiopulmonary fitness in order to provide effective reference for designing adolescent exercise program. A total of 14 articles meeting the research criteria were included, and the risk of bias assessment was performed for the 14 articles according to the criteria stated by PRISMA. The results were as follows: (1) There was no statistically significant difference in the intervention effects of HIIT and CAT on adolescent body weight and BMI, but there were significant differences in the intervention effects on body fat rate. (2) There was no statistically significant difference in the intervention effects of HIIT and CAT on adolescent VO2max, VO2peak, SBP and DBP, but the overall effect of HIIT on adolescent VO2max, VO2peak and DBP was better than CAT, and the overall effect of CAT on adolescent SBP was better than HIIT. (3) The adolescents were divided into healthy and obese subgroups. In the healthy subgroup, the intervention effect of CAT on body weight, body fat rate, BMI and SBP was better than HIIT, and the intervention effect of HIIT on VO2max and DBP was better than CAT. In the obese subgroup, the intervention effect of HIIT on body weight, body fat rate, BMI, VO2max and DBP was better than CAT. HIIT and CAT had similar intervention effects on SBP in healthy adolescents. |