阻力练习的速度不能准确地评估储备中的重复
Sean K Mansfield1, Jeremiah J Peiffer1,2, Brook Galna2,3
1Murdoch Applied Sports Science Laboratory, Discipline of Exercise Science, Murdoch University, Perth, Australia.
European journal of sport science
|August 8, 2023
概括
在阻力训练过程中,棒速度不是可靠的预备 (RIR) 重复的指标. 基于速度的RIR估计在大多数重复中是不准确的,这表明需要替代的自我调节方法用于娱乐活动的个人.
科学领域:
- 运动生理学 运动生理学
- 生物力学 生物力学
- 运动科学 运动科学 运动科学
背景情况:
- 基于速度的训练 (VBT) 使用棒速度来规定和监测阻力运动的强度.
- 对于有效的VBT,速度测量的可靠性对于估计不同练习,负载和组的储备重复 (RIR) 是至关重要的.
- 了解与RIR相对的条形速度的变化对于优化训练自调是必不可少的.
研究的目的:
- 为了评估平均同心棒速度在四组中不同重复备用 (RIR) 的可靠性.
- 为了确定第一组的速度值是否可以预测后续组的RIR.
- 为了检查不同练习 (板压,斜排) 和负载 (60%,80% 1RM) 对速度-RIR关系的影响.
主要方法:
- 20名休性活跃的男性在随机会议中以60%或80%的最大1次重复率 (1RM) 执行了四组失败.
- 一个线性位置传感器测量了每次重复的平均同心速度.
- 记录了从3-RIR到0-RIR的重复的速度.
主要成果:
- 在这两项练习中,每次重复时,条形速度都显著下降,从3-RIR到0-RIR.
- 速度-RIR可靠性在长板压力中很差 (ICC=0.40,CV=21.3%),但在倾斜行中更好 (ICC=0.80,CV=6.1%).
- 较低的负载 (60% 1RM) 与较高的负载 (80% 1RM) 相比,导致更快的平均同心速度.
- 从第一组开始的速度准确地预测了后续组中只有30.9%的重复的RIR.
结论:
- 平均同心棒速度在娱乐活跃个体中对跨套,练习和负载的RIR估计并不始终可靠.
- 基于速度的RIR预测对于大多数重复 (69.1%) 是不准确的.
- 由于基于当前速度的RIR估计的局限性,应考虑自调节阻力运动强度的替代方法.
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