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首页> 外文期刊>BioTechnology: An Indian Journal >Volleyball spiking point position and success rate correlation research based on biomechanical geometric model
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Volleyball spiking point position and success rate correlation research based on biomechanical geometric model

机译：基于生物力学几何模型的排球扣球位置与成功率相关性研究

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Spiking accounts for very large proportion in modern volleyball competitiveness, it also can mostly reflect one team???s strength. The paper applies mechanical knowledge, mainly analyzes volleyball spiking technique, makes analysis of volleyball spiking moment takeoff, hitting and other motions, and utilizesmoment ofmomentumtheoremto research on volleyball spiking technique some rules with an aim to normalize volleyball spiking technique. The paper gets that twist spiking is when athlete takes off and hits, spiking by changing upper body facing direction; when athlete takes off, it should enlarge athlete himself rotational angular speed, let legs arrive at straight, gravity center and body rotational axis come to terms so that can reduce rotational inertia, and then it further achieves the efficiency of increasing rotational angular speed, and at the same time of taking off, twisting upper body can also continue to increase self-rotational angular speed, let contact ball more rapid. When athlete takes off and arrives at top point, athlete should try to adjust body stability and let rotational angular speed reduce as much as possible, at this time, athlete should lift two legs backward, and let gravity center to be far away from rotational axis. Then arrive at stable contacting ball state. By establishing geometric model, it concludes that when athlete spikes, he should try to manage to stretch arms to right ahead and remain vertical to hitting point, athlete take-off height gets higher, and ball over net probability would be larger; by ball located hitting point height differences, presented over net trajectory and landing point are also different.
机译：尖刺在现代排球比赛中占很大的比重，它也可以在很大程度上反映一支球队的实力。本文运用了机械知识，主要分析了排球扣球技术，分析了排球扣球的起跳，击打等动作，并利用动量定理对排球扣球技术进行了一些研究，旨在规范排球扣球技术。纸上的扭曲尖峰是当运动员起飞并击打时，通过改变上半身的朝向而产生尖峰。运动员起飞时，应增大运动员本人的旋转角速度，使双腿伸直，重心和身体旋转轴趋于一致，以减小旋转惯量，进而达到提高旋转角速度的效率;在起飞的同时，扭动上身还可以继续增加自转角速度，让接触球更加迅速。运动员起跳到达最高点时，应尝试调节身体稳定性，并尽可能减小旋转角速度，此时，运动员应向后抬起两条腿，并使重心远离旋转轴。然后达到稳定的接触球状态。通过建立几何模型，可以得出结论，当运动员出现峰值时，他应设法将手臂向前伸直并保持与击球点垂直，运动员的起飞高度会更高，并且接球净概率会更大;通过球定位击球点的高度差，呈现出的净轨迹和着陆点也不同。

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