在水球比赛中，教练员和运动员都希望能够充分发挥自己的特长和技术水平，取得好成绩，但是，有不少运动员，平时训练的个人防守能力较强，移动的速度较快，水平较高。然而在比赛中，却表现不出其本人的真正防守能力，场上移位跟不上对手的速度，防守选位常常出错。其中原因很 In the water polo competition, the coaches and athletes all hope to give full play to their strengths and skills, and achieved good results, however, there are many athletes, usually training strong personal defensive ability to move faster and higher level . However, in the game, but did not show their true defensive ability, the field can not keep up the pace of the shift, the defensive position is often wrong. The reason is very good