幼児期における全身反応時間の年齢差の検討および脚伸展筋力との関係

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  • A study of age differences in whole-body reaction time and its relationship to leg extensor muscle strength in preschool children
  • ヨウジキ ニ オケル ゼンシン ハンノウ ジカン ノ ネンレイサ ノ ケントウ オヨビ キャク シンテン キンリョク ト ノ カンケイ

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<p>Whole-body reaction time is used as a measure of athletic ability in preschool children. The purpose of this study was to compare whole-body reaction time in preschool children in relation to leg extensor muscle strength. The participants were 198 preschool children aged 3 to 6 years, who underwent assessment of whole-body reaction time and isometric right leg extensor muscle strength. Whole-body reaction time (T4) was fractionated into movement start time (T1) , counter movement time (T2) , motor time (T3) . There was a significant difference between each age for T1 (p < 0.001) , T3 (p < 0.01) and T4 (p < 0.001) . However, there was no significant difference in time of T2. There was correlation between whole-body reaction time and leg extensor muscle strength. The measurement of T1 led to assessment of the development of the brain and nervous system. And we made a proposal that the difference of exercise experience might influence the result for the measurement of T4.</p>

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