スプリントトレーニング処方のためのダウンヒル・スプリントの基礎的研究

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タイトル別名
  • Basic study on downhill sprint for sprint training prescription
  • スプリントトレーニング ショホウ ノ タメ ノ ダウンヒル スプリント ノ キソテキ ケンキュウ

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<p>    The purpose of this study was to collect basic data of downhill sprint for sprint training prescription. The subjects for this study were 9 male sprinters of Kanagawa Institute of Technology. The mean values of downhill gradients of the 100m slopes selected were horizontal, 1.59%, 3.57%, 5.01%, and 6.50%. Velocity curve, kinematical variables, and the relationship between objective time and subjective time were investigated in the horizontal running and each downhill running.</p><p>    The results were summarized as follows:</p><p>  1.  The data suggest that the 1.59% gradient downhill is not suitable for sprint training using supramaximal velocity.</p><p>  2.  No significant difference in running velocity was found between horizontal running and 1.59% gradient downhill running. Statistically significant (P < 0.01) supramaximal velocity was found in 3.57% and steeper gradient downhill running. Therefore, it became clear that the critical point of downhill gradient exists between 1.59% and 3.57% where statistically significant supramaximal velocity begins to appear. Furthermore, it is proved that a sprinter can experience supramaximal velocity, which is, as it were, a higher level of ability than his running ability level, on 3.57% and steeper downhill gradient.</p><p>  3.  Stride length was greater, the greater the downhill gradient. There was not much change in stride frequency between horizontal running and any downhill running. Therefore, it is suggested that the supramaximal velocities in downhill running were caused by the increase in stride length rather than stride frequency.</p><p>  4.  Time of support decreased with increasing downhill gradient, but on the other hand, time of non-support in creased with increasing downhill gradient.</p><p>  5.  Of six subjects out of nine, both objective time and subjective time became shorter with increasing downhill gradient. It was estimated that these six subjects did perceive supramaximal velocity for downhill running as psychological sense of speed.</p><p>  6.  It is suggested that downhill running is useful for psychological speed training.</p>

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