Characteristics of boys and girls in the most superior and inferior groups on physical fitness with progress of bipolarization of physical fitness level

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  • Hirakawa Kazufumi
    Graduate School of Human Development and Environment, Kobe University
  • Takano Kei
    Graduate School of Human Development and Environment, Kobe University

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  • 体力の二極化進展において両極にある児童生徒の特徴
  • タイリョク ノ ニキョクカ シンテン ニ オイテ リョウキョク ニ アル ジドウ セイト ノ トクチョウ

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The purpose of this study was to make clear the characteristics of physical fitness and life-style of boys and girls in the most superior and inferior groups on physical fitness level. About 29, 000 boys and girls were measured their physical fitness and motor performances, body height and body weight and were also estimated the levels of physical activities, frequency of breakfast intake, sleeping hours and watching TV hours. The physical fitness and motor performances of the most superior group, as the results, showed higher values of 40-70% in boys and 60-85% in girls than those of the inferior group. BMIs in the both groups at junior high school period showed similar values each other and were higher than that of the average fitness group. These results suggest that it must pay attention to estimate a development of body composition by BMI. The most inferior group was also characterized with low physical activity levels and irregular breakfast intake and sleeping hours in their life-style.

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