EFFECT OF HIGH INTENSITY INTERVAL CIRCUIT TRAINING PROGRAM ON OVERWEIGHT STUDENTS’ BODY COMPOSITION

Abstract

The purposes of this research were to investigate and compare the effect of high intensity interval circuit training program on overweight students’ body composition. The research instrument was the constructed high intensity interval circuit training program, the IOC of which was 0.90. The research samples were thirty Matthayom 3 overweight students aged between 14 - 15 years old from Banharn Jamsai Wittaya 3 School by purposive sampling. They were divided into two groups, each of which comprised fifteen overweight students. The control group was given to conduct their lives normally and the experimental group was trained with the constructed training program sixty minutes a day, three days a week for eight weeks. The Body Mass Index (BMI) and the Percent Body Fat (PBF) were tested before training, after the fourth and the eighth training weeks. The data were analyzed by mean, standard deviation, t - test dependent, one - way analysis of variance in repeated measure, and pairwise comparison by Least Significant Difference (LSD) method at the level of 0.05. 

          The findings revealed that no significant differences in BMI between the control and the experimental groups were found before training while significant differences in BMI between both groups were found after the fourth and the eighth training weeks at the level of 0.05. No significant differences in PBF between both groups were found before training, after the fourth and the eighth training weeks. Significant differences in BMI and PBF within both groups were found before training, after the fourth and the eighth training weeks at the level of 0.05. In conclusion, training with the constructed high intensity interval circuit training program for over four weeks can help reduce the BMI and the PMF of overweight students.