<原著>サッカーのキック動作に関する基礎的研究 : インステップキックにおける一歩助走の位置がボールスピード・膝関節の角度変化に及ぼす影響

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It was investigated that the relationship between the ball-velocity and knee-angle changes at various approaching positions for one-step instep-kick of soccer. The subjects were five soccer players. The ball-velocity was calculated by the time difference between ball-impact and the ball hitting the target. The knee-angle changes were measured with a goniometer in the kicking legs. The optimum approaching position was 114.4 (±13.54) cm and 27.0 (±6.1) degrees from the kicking direction. The ball-velocity was significantly lower at No-step and short distance of approaching, though there was no difference between differing knee-angle changes at each approaching position. The knee extension time and angle were significantly louer at zero angle of approaching. Furthermore, the angular velocity of the knee joint at the backswing for the ball was significantly slower at No-step kick.
1996-03-31