对优秀男排运动员沙滩排球扣球起跳动作的运动学分析

Kinematics Analysis of Jump in Spike by Elite Sportsmen in Beach Volleyball

采用录像拍摄与解析的方法分析了优秀男排运动员沙滩排球扣球起跳阶段的人体重心的速度变化及人体环节的配合特点。研究表明:在沙滩上起跳时人体重心水平速度损失少、腾起垂直速度小、腾起角度小;在沙滩上起跳时人体环节的配合均较差,这是由沙滩的流动性、可压缩性等特性所致。

Applying the method of videotaped shooting and analyzing, the velocity variety of gravity center and cooperation characteristics of segments of human body in jump in spike by elite sportsmen in beach volleyball were analyzed. The study indicated that in beach volleyball the loss of horizontal velocity was small, vertical velocity at the moment of leaving off was small, and simultaneously the angle of jump was small; the cooperation of segments of human body was bad because of the specialty of beach.