The purpose of this study was to investigate the correlation among factors in elementary school students and the analysis of differences in health-related physical fitness factors according to body composition. The subject were 99 students of I, G, S Elementary School located in Pocheon. On the basis body composition(percent bodyfat), the students were classified into three groups. The children\'s health-related physical fitness measurement consisted in 5 test items ; muscular strength, muscular endurance, flexibility, cardiorespiratory endurance, body composition. All data were analyzed by Correlation Analysis and one-way ANOVA on of SPSS/PC +11.0, accepting level for all significances was above α=.05. The results of this study were as follows : In the correlation among total health-related physical fitness factors, there were a positive correlation between body composition and muscular strength, body composition and cardiorespiratory endurance, but the correlation between body composition and muscular endurance, body composition and flexibility was negative correlation. In the correlation between the groups organized according to body composition and health-related physical fitness factors, there were a positive correlation between normal group and cardiorespiratory endurance, overweight group and muscular strength, obesity group and cardiorespiratory endurance. In the difference in health-related physical fitness factors among the groups organized according to body composition, in a difference body composition and muscular strength, obesity group showed superior muscular strength than normal and overweight groups. In a difference body composition and muscular endurance, normal group showed superior muscular endurance than obesity group. In a difference body composition and cardiorespiratory endurance, normal group showed superior cardiorespiratory endurance than obesity group. But in a difference body composition and flexibility, there were no significant differences among the groups.
* Key Words : elementary school students, body composition, percent bodyfat, health-related physical fitness factors, correlation