相关实验视频
Updated: Sep 11, 2025

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Procedures for Rat in situ Skeletal Muscle Contractile Properties
Published on: October 15, 2011
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肌肉收缩类型的加速和减速性能与力量发展速度的特定关联
Hikaru Kurosaki1,2, Ema Tsubota1, Motoki Katsuge1
1Graduate School of Sport Sciences, Waseda University, Tokorozawa, Saitama, Japan.
PeerJ
|August 18, 2025
概括
这项研究发现,更快的冲刺时间与更高的力量发展率 (RFD) 相相关,而更好的方向变化性能与更大的偏心RFD有关. 这些发现可以为运动员的训练提供信息.
科学领域:
- 运动科学 运动科学 运动科学
- 生物力学 生物力学
- 运动生理学 运动生理学
背景情况:
- 许多运动需要快速加速和减速,这对于方向变化至关重要.
- 这些运动需要显著的冲动,这强调了力量发展速度 (RFD) 的重要性.
- 加速/减速能力和同心/异心RFD之间的确切关系尚不清楚.
研究的目的:
- 调查不同类型的肌肉收缩 (集中式,偏心式,同心式) 和加速和减速运动表现中的RFD之间的相关性.
- 澄清RFD特定特征对冲刺速度和改变方向的能力有何贡献.
主要方法:
- 28名健康参与者 (13名男性,15名女性) 完成了评估.
- 同心,偏心和同度RFD被测量使用式跳跃,反运动跳跃和同度.
- 加速 (10码冲刺) 和减速 (方向变化缺陷 - COD缺陷) 被量化.
主要成果:
- 更快的10码冲刺时间与更大的同心RFD显著相关 (r(s) = -0.41,p=0.03).
- 较小的COD赤字与更大的异常RFD显著相关 (r(s) = -0.44,p=0.02).
- 同度RFD显示与任何性能测量都没有显著的相关性.
结论:
- 集中式RFD与加速性能 (冲刺) 特别相关.
- 奇特的RFD与减速性能 (方向变化) 特别相关.
- 这些发现可以指导开发有针对性的训练计划,以提高运动员的加速和减速.
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