两种新材料接的塑料乒乓球球之间的动态弹性特性和冲击效果的差异
Jiajie Tian1, Zerong Wang1, Yi Xiao2
1China Table Tennis College, Shanghai University of Sport, Shanghai, 200438, China.
Scientific reports
|September 30, 2024
概括
这项研究比较了DHS D40+和Nittaku 40+乒乓球,发现Nittaku 40+提供了卓越的动态弹性和反弹. 玩家可能需要调整技术以获得最佳表现,使用Nittaku 40+球.
科学领域:
- 体育科学 运动科学 运动科学
- 材料科学 材料科学 材料科学
背景情况:
- 乒乓球球的特性,包括直径和重量,影响球的弹性和冲动动态.
- 过渡到塑料球需要了解品牌之间的性能差异.
研究的目的:
- 分析和比较两个新的塑料乒乓球球品牌DHS D40+和Nittaku 40+的动态弹性和中风效应.
- 识别可能影响球员技巧和球轨迹的性能变化.
主要方法:
- 一个自行设计的实验评估了DHS D40+和Nittaku 40+球的动态弹性.
- 来自中国乒乓球学院的十八名乒乓球运动员参加了比赛.
- 分别使用测速仪和高速摄像机测量了球的速度和旋转速度.
- 使用独立的t测试来评估统计差异.
主要成果:
- 这两种球类型的反弹速度和下降速度都增加了,下降速度更快.
- 在高冲击速度 (p < 0.01) 观察到动态弹性的显著差异.
- 与Nittaku 40+ (p = 0.041,p = 0.022) 相比,DHS D40+在背手背中文中表现出更高的球速度和旋转速度.
- 尼塔库40+表现出更快的反弹速度,更高的反弹高度和更好的动态弹性.
结论:
- 与DHS D40+相比,Nittaku 40+球具有优越的动态弹性和反弹特性.
- 玩家可能需要在使用Nittaku 40+球时增加摆动幅度和力,以达到所需的球速度和旋转.
- 调整Nittaku 40+球的发球技术可以优化旋转并降低反弹高度.
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