足趾把持筋力は100m走記録に影響するか ―小学陸上競技選手に着目して―

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  • Does Toe Grip Strength Affect 100-meter Sprint Time?: Focusing on Elementary School Age Track and Field Athletes
  • ソクシハジ キンリョク ワ 100mソウ キロク ニ エイキョウ スル カ : ショウガク リクジョウ キョウギ センシュ ニ チャクモク シテ

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Background and aim: The relationship between toe grip strength （TGS） and 100-meter sprint time （100-m） of elementary school age track and field athletes are not well known, although the TGS is thought to affect sprint performance. Therefore, we aimed to examine relationship between the TGS and the 100-m on elementary school age track and field athletes. Methods: Thirteen boys （10.2±0.4yrs.） and eleven girls（ 9.6±0.5yrs.） participated in the study. All subjects were healthy and did not have any history of orthopedic disease. The TGS was measured using the toe grip dynamometer II （TKK3364） manufactured by Takei Scientific Instruments Co., Ltd. The 100-m stands for the official record, which was marked at most a month before the TGS measurement. Correlations between the TGS and the 100-m were analyzed by Pearson’s correlation coefficient. Probability values less than 0.05 level were considered to be statistically significant. Results: According to the Pearson’s correlation coefficients, the TGS and the TGS/Wt. of boys were significantly correlated with the 100-m （p=0.003, p=0.002）. As for girls, the TGS and the TGS/Wt. were also significantly correlated with the 100-m （p=0.007, p=0.014）. Conclusion: Based on the results, it can be concluded that the strength of foot and ankle muscles may affect the 100-meter sprint time of elementary school age track and field athletes.

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