STATIC BLOCK JUMP TECHNIQUES IN VOLLEYBALL: UPRIGHT VERSUS SQUAT STARTING POSITIONS
STATIC BLOCK JUMP TECHNIQUES IN VOLLEYBALL: UPRIGHT VERSUS SQUAT STARTING POSITIONS
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DOI：
10.1519/jsc.0b013e31816d5a7f
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发表时间：
2008-07-01
影响因子：
3.2
通讯作者：
Amasay, Tal
中科院分区：
文献类型：
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作者：
Amasay, Tal
排球的静态拦网跳技术：直立与蹲起姿势。[J] .力量学报，22:1242-1248 - 2008 .以10名大学排球二级运动员为研究对象，比较了以直立起跳（直立BJ）和以深蹲起跳（深蹲BJ）为起跳起点的静态拦网跳最大起跳高度的差异。同时还测定了快速挡跳的起跳时间差异，即在网上方的恒定点上，直立式和蹲式跳的起跳时间差异。采用AMTI测力板和60 Hz摄像机采集数据。每个被试随机进行3次最大直立式和3次最大深蹲式，5次快速直立式和5次快速深蹲式。记录最大直立和深蹲动作的最高起跳，快速直立和深蹲动作的最快起跳。最大直立型运动员与最大蹲型运动员在跳高上有显著差异（p < 0.03）；最大直立BJ （33.2 cm）高出1.2 cm。快速直立和深蹲运动员的最快起跳时间（约0.7 s）无显著差异（p < 0.05）。这些结果表明，与蹲姿相比，大学女排运动员可以从直立姿势跳得更高。他们可以同样快速地从直立或蹲起的姿势起跳到相同的位置。这些数据可能表明体能教练应该确定他们的球员喜欢的BJ位置，并结合一个特定的训练计划来提高球员的力量。此外，教练可能需要结合更具体的深蹲耐力练习。
Amasay, T. Static block jump techniques in volleyball: upright versus squat starting positions. J Strength Cond Res 22: 1242-1248,2008-The difference in maximal jump height between static block jump starting from an upright position (upright BJ) and static block jump starting from a squat position (squat BJ) was determined in 10 division II collegiate women volleyball players. Also determined was the difference in take off time for quick block jump, to a constant point above the net, between upright BJs and squat BJs. An AMTI force plate and a video camera (60 Hz) were used to collect the data. Each subject performed three maximal upright BJs and three maximal squat BJs, and five quick upright BJs and five quick squat BJs, randomly. The highest jump for maximal upright BJs and squat BJs, and the fastest jump for quick upright BJs and squat BJs were recorded. There was a significant difference (p < 0.03) between maximal upright BJs and squat BJs in height jump; maximal upright BJ (33.2 cm) was higher by 1.2 cm. No significant difference (p > 0.5) was found for the fastest take off time (approximately 0.7 s) between quick upright BJs and squat BJs. These results suggest that college women volleyball players can jump higher from the upright, compared with the squat, position. They can take off to the same block position equally quickly from either the upright or squat starting position. These data may suggest that conditioning coaches should identify their players' preferred BJ position and incorporate a specific training program to enhance the players' power. Furthermore, the coaches may need to incorporate more specific squat endurance exercises.