Relationships between physical fitness and body mass index in 11- and 12- year-old New Zealand and Japanese school children

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The present study examined differences in scatter plots and correlations between physical fitness factors and body mass index (BMI) for New Zealand and Japanese school children. Subjects were 11- and 12-year-old students living in Hamamatsu City, Japan and Christchurch, New Zealand. Physical fitness tests were performed in each country. For Japanese children, these included a 20-m shuttle run, standing jump, sit and reach, slide steps and sit-up tests. Tests for New Zealand children comprised a 550-m run, standing long jump, sit and reach, agility test, and sit-ups. Comparing physical fitness of children in each country, each test was classified into 5 fitness factors. Correlations of each physical fitness test with BMI for New Zealand and Japanese children were calculated without an underweight group. Prevalence of overweight and obesity were significantly higher in New Zealand children than in Japanese (boys, p<0.05; girls, p<0.001). Prevalence of underweight was higher in Japanese girls than in New Zealand girls (p<0.001). Some fitness factors showed significant negative correlations, but this was not strong. Despite the different cultures and ethnicities, relationships between BMI and each physical fitness factor were thus similar in both countries. Important problems are the number of lower-fitness children within the normal group in both countries. These findings suggest that relationships between BMI and various fitness factors can be estimated for Japanese children as in Western countries, and development of motor fitness for children of both countries appears warranted regardless of BMI. These regions should share ideas and strategies in the schools and society of both countries to prevent decreasing physical fitness and increasing weight on children.

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  • 教科開発学論集

    教科開発学論集 1 195-206, 2013-03-31

    愛知教育大学大学院・静岡大学大学院教育学研究科 共同教科開発学専攻

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