在背时角速度的实用性,用于预测1RM和负载速度分析
Kyle S Beyer1, Jonathan P Klee1, Jake C Ojert1
1Resistance Exercise, Physiology, and Sport Laboratory, Health and Exercise Physiology Department, Ursinus College, Collegeville, PA 19426, USA.
Sensors (Basel, Switzerland)
|October 16, 2025
概括
与线性速度相比,角速度提供了一种更准确的方法来估计一次重复的最大值 (1RM),尽管这两种方法都不完全有效. 在较轻的负载下线性速度的性别差异表明需要个性化的训练方法来进行基于速度的训练.
科学领域:
- 生物力学 生物力学
- 运动科学 运动科学 运动科学
- 强度和适应条件 强度和适应条件
背景情况:
- 线性速度是估计一次重复最大 (1RM) 和训练强度的标准.
- 角速度,可能更能代表关节运动,尚未用于1RM预测.
研究的目的:
- 为了比较1RM预测的准确性,使用男性和女性的负载速度概况 (LVPs) 的角度速度与线性速度.
主要方法:
- 14名休训练成年人 (7名男性,7名女性) 接受了1RM测试.
- 参与者在单独的一天进行了随机的亚最大坐方案 (30-90% 1RM).
- 线性速度用线性位置传感器测量;角速度用大腿上的加速度计测量.
主要成果:
- 基于角速度的1RM预测 (1RM角) 与实际的1RM (p=0.951) 没有显著差异,效果大小微不足道 (d=0.02) 和高相关性 (r=0.984).
- 基于线性速度的1RM预测 (1RM线性) 与高度相关 (r=0.991),但与实际的1RM (p<0.001) 有着很大的效果大小 (d=1.56) 显著不同.
- 1RM<亚>角的绝对误差明显低 (6.7 ± 5.3 公斤) 比1RM<亚>线性 (12.9 ± 8.2 公斤). 男性的绝对误差比女性的绝对误差更大,不管方法如何. 在较低的亚最大负载下观察到线性速度的显著性别差异.
结论:
- 与线性速度相比,角速度可能为力量教练在次最大背时提供更精确的1RM预测.
- 任何速度测量都没有完全满足1RM预测中高有效性标准.
- 观察到的在亚最大负载下线性速度的性别差异突出了基于速度的训练中需要对性别进行特定考虑的需要,特别是在较轻的强度下.
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