在逆转跳跃过程中增加制动和减速力并不一定会提高跳跃高度
Daichi Nishiumi1, Norikazu Hirose2
1Graduate School of Sport Sciences, Waseda University, Saitama, Japan.
Journal of human kinetics
|November 20, 2024
概括
在反运动跳跃 (CMJs) 中提高力发展 (B-RFD) 的制动速率和消耗力 (Amf) 提高了早期冲动,但没有增加跳跃高度. 增强的早期冲动减少了后来的冲动,这解释了为什么B-RFD和Amf的改进没有提高CMJ高度.
科学领域:
- 生物力学 生物力学
- 人类运动科学科学 人类运动科学
- 运动科学 运动科学 运动科学
背景情况:
- 反运动跳跃 (CMJ) 是基本的运动运动.
- 优化力量生产特征,如力量发展的制动速率 (B-RFD) 和折旧力 (Amf),对于性能至关重要.
- 了解这些力量和跳跃动力学之间的相互作用对于训练计划设计至关重要.
研究的目的:
- 研究修改B-RFD和Amf对CMJ高度的急性影响.
- 为了检查不同的跳跃速度和深度如何影响B-RFD,Amf和同心相脉冲.
- 为了确定B-RFD,Amf和CMJ性能变化之间的关系.
主要方法:
- 19名训练有素的参与者以首选和快速的速度以及不同深度 (60°,90°,120°) 进行CMJ.
- 测量的变量包括CMJ高度,B-RFD,Amf,以及早期 (EI) 和晚期 (LI) 的同心相脉冲.
- 统计分析包括双向ANOVA和利率变化的相关性分析.
主要成果:
- 对于B-RFD和Amf (p <0.05) 发现了速度和深度的显著影响.
- CMJ高度没有受到速度的显著影响.
- 在B-RFD/Amf和EI的变化之间存在很高的相关性,在EI和LI之间存在中度的负相关性.
结论:
- 在B-RFD和Amf的改善与集中阶段早期冲动 (EI) 的增强有关.
- 增加的EI导致晚期冲动 (LI) 的减少.
- 因此,增强的B-RFD和Amf并没有直接转化为增加CMJ高度.
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