Effects of Isokinetic Muscular Strength on the Driving Distance of a Placekick in a Novice Rugby Football Players

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  • ラグビーフットボール競技の初心者におけるプレースキックの飛距離を等速性筋力から考える
  • ラグビーフットボール キョウギ ノ ショシンシャ ニ オケル プレースキック ノ ヒキョリ オ トウソクセイ キンリョク カラ カンガエル

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Taking 8 male students who belong to our university rugby football team as the subjects of this study, we examined how isokinetic muscle strength of the joints movement of the lower limbs during rugby football game affects to driving distance and ball speed of placekick. The results are as follows : 1) The driving distance and ball speed of a placekick for higher rank group were significantly superior to those for lower rank group (P<0．05). 2) Significant positive correlation was found between the driving distance and ball speed of a placekick (P<0．05). 3) The isokinetic muscular torque and mean power by the knee medial rotation and lateral rotation for higher rank group were significantly superior to those for lower rank group (P<0．05). 4) The isokinetic muscular torque and mean power by the knee extension and flexion in a prone position for higher rank group were significantly superior to those for lower rank group (P<0．05). 5) The isokinetic muscular torque by the hip abduction and adduction for lower rank group were significantly superior to those for higher rank group (P<0．05). From these results, it was inferred that isokinetic muscle strength of knee joint and hip joint by kicking leg influence upon driving distance and ball speed in the motion of the placekick in a rugby football players.

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