中学生の骨量と食習慣および運動習慣との関連について

概要

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This study conducted cross-sectional review of relationship between dietary habit, sport habit and physical constitution in junior high-school students by measuring stiffness index (SI) of calcaneal bone using ultrasonic bone densitometer. No difference was observed in SI between the sexes, whereas the value increased in both boys and girls as the grade advanced. The values of SI, new physical performance test andsport habit were significantly higher in those who had better physical strength evaluation and sport habit.No relationship was observed between SI and diet in high in calcium. In terms of extraction of factors relevant with SI, result of physical performance test was found to be the first factor and correlation was shown between grasping power and 50-meter run in boys and between ball throwing and 20-meter shuttle run in girls respectively, indicating muscle force and endurance capacity had an effect to enhance SI.
2011-03-31