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Background The increasing proportion of obese adolescents and the decrease of their physical fitness may be due to a small opportunity for physical activity at school. This study was performed to evaluate the changes of physical fitness and physique following the 7th physical education curriculum an...

Background The increasing proportion of obese adolescents and the decrease of their physical fitness may be due to a small opportunity for physical activity at school. This study was performed to evaluate the changes of physical fitness and physique following the 7th physical education curriculum and also to compare the difference between normal and overweight high school students, based on body mass index(BMI). Methods Subjects were composed of 722 female high school students who were separated into two groups(359 subjects for the 6th and 363 subjects for the 7th physical education curriculum), and also subgroup included normal(≤BMI 22.9kg/m2) and overweight(≥BMI 23kg/m2)group. Results By the change of physical education curriculum, height and sitting height increased significantly whereas 50m-distance running, sit-ups, pull-ups, sit and reach, and a long distance running-walking were decreased significantly. The record of 50m-distance running, sit-ups, pull-ups, distance jumping, and a long distance running-walking of overweight group was significantly lower than that of normal weight group. The interactive effect between curriculum and overweight on only a long distance running-walking was observed. In additional, BMI was associated with a 50m-distance running, pull-ups, and a long distance running-walking. Conclusions In spite of the positive change of physical physique, most of physical fitness factors tested in this study were shown to decrease, and the physical fitness level of overweight students was much lower. Especially, cardiovascular endurance should be the first consideration in physical education curriculum.

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