我国优秀女排队员移动拦网技术动作解析

Analysis of blocking technique for elite female volleyball players in China

运用三维高速录像解析法对我国3名女排优秀运动员移动拦网技术进行了现场拍摄和数字化解析。结果表明：体侧型手臂姿势动作,更有利于加快起动、转身、移动速度的发挥和增加拦网高度；在起跳阶段,腿的缓冲时间均长于蹬伸时间；3名队员拦网高度在2．60～2．71米之间,并表现出左肩、左手明显高于右肩、右手的技术特征,表明除运动员左肩有意识地向上伸展以增加拦网高度外,也与有效拦击对方斜线扣球有关；拦击球瞬间的身体空中姿势动作是以肩关节为中心,而不是以髋关节为中心形成的“〈”型。

By using the method of three - dimensional high - speed camera, the author shot the film on blocking technique of the three elite female volleyball players and made the mathematic analysis. The result showed that the body - sided ann movement is more beneficial for speeding up the effect of the movement of turning around and raising the height of blocking. During the taking - off time, legs＇ cushion time is longer than the press - down time, the height of blocking of the three elite female volleyball players is between 2.60- 2,71 meters. The analysis also manifests that the technique features about the left shoulder and left hand are higher than the right shoulder and right hand obviously of the three players, which means that it is not only because that the players stretch the left shoulders intentionally to increase the height of the blocking, but also relates to blocking the opponents＇ oblique trajectory ball. Besides, during the moment of blocking the ball, the body＇ s posture is centered on the shoulder joint rather than the hipbone joint.