This study aims to find out the relevance between health-related physical fitness and obesity in elementary
students who work out with a view to boosting physical activities. In order to deal with the limitations of
studies focusing on comparing differences between exercise-related physical fitness factors and those designed
to use a small number of subjects and limited to certain local communities, the present study selected groups
in both the capital and local areas. For the purpose of this study, health-related physical fitness test
measurement records of 333 elementary students attending a total of 8 schools (2 schools from each of 4
capital and local areas) were examined. Also, to elucidate the differences in NYC %Fat depending on degrees
of obesity in 5th and 6th graders, this study presented means and standard deviations, and conducted
two-way ANOVA and Multivariate Analysis of Variance(MANOVA). The findings here are as follows: First,
regarding the comparative analysis of the differences in sub-factors constituting the health-related physical
fitness between groups of different NYC %Fat levels in each grade of elementary students, the records of the
non-obese group in terms of NYC %Fat were found most positive in both 5th and 6th graders. According to
the analysis of variance concerning any difference between groups based on NYC %Fat within a grade, a
significant difference was found in cardiopulmonary endurance capabilities, a sub-factor of the health-related
physical fitness. Second, in regard of the comparative analysis of any differences in sub-factors constituting the
health-related physical fitness between groups of elementary students based on NYC %Fat in each area, the
most positive records were found in NYC %Fat obese group of students in the capital area, and NYC %Fat
non-obese group of students in the local area. According to the analysis of variance concerning any
differences between groups of different NYC %Fat levels within an area, only the students in the capital area
showed differences in muscular strength, a sub-factor of the health-related physical fitness. Third, the analysis
of any differences in NYC %Fat group characteristics in each sub-factor of health-related physical fitness
showed that the group characteristics of elementary students based on NYC %Fat led to differences in
sub-factors of the health-related physical fitness. Specifically, it was cardiopulmonary endurance capability sub
factor of the health-related physical fitness that was explained to the greatest extent by independent variables
and that had the greatest influence on the health-related physical fitness depending on the group
characteristics of elementary students in terms of NYC %Fat among dependent variables