沙滩排球与室内排球扣球起跳阶段人体重心运动特征的生物力学对比研究  

Biomechanical Analysis on Movement Characteristics of Gravity Center of Body in the Phase of Jumping of Spike between Beach and Indoor Volleyball

作　　者：李世明[1] 刘学贞[2] 许全盛[3] 

机构地区：[1]烟台师范学院体育系,山东烟台264025 [2]北京体育大学运动生物力学教研室,北京100084 [3]江苏省体育科学研究所,江苏南京210014

出　　处：《中国体育科技》2002年第2期32-34,49,共4页China Sport Science and Technology

摘　　要：采用摄像与录像解析的方法对沙滩排球与室内排球扣球起跳阶段人体重心的运动特征进行了运动生物力学对比研究。沙滩排球扣球起跳与室内排球扣球起跳相比 ,人体重心运动特征表现为 :起跳过程水平速度损失小 ,离地时刻水平速度大 ;加速蹬伸阶段人体重心上升位移短 ,垂直腾起速度小 ;By using the videotape and tape analysis system, the author compares the movement characteristics of gravity center of body in the phase of jumping of spike between beach and indoor volleyball. Comparing with indoor volleyball, beach volleyball has some characteristics, for example, smaller loss of horizontal velocity in the phase of jumping, and bigger at the moment of takeoff, shorter displacement in the phase of accelerating thrust, and smaller value of vertical velocity at the moment of takeoff and smaller angle of takeoff. It suggests that the volleyball players should pay more attention to the direction of treading down in the phase of spike jumping, and the setter should take it into consideration in the course of setting.

关 键 词：人体重心 扣球 室内排球 沙滩排球 起跳阶段 水平速度 蹬伸 对比研究 生物力学 表现 

分 类 号：G842[文化科学—体育训练] G823[文化科学—体育学]