优化施加的负载,以评估在背部腰时的负载速度关系
Zhaoqian Li1, Litong Xiao2, Xing Zhang1
1Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Spain.
PloS one
|July 18, 2025
概括
这项研究发现,修改后的多点方法用于评估背部坐的负载-速度 (L-V) 关系,有效率高达一次重复最大 (1RM) 的70%. 在最轻的和最重的负载 (20%和90% 1RM) 中,最好使用现场两点方法.
科学领域:
- 运动科学 运动科学 运动科学
- 生物力学 生物力学
- 强度和适应条件 强度和适应条件
背景情况:
- 负载-速度 (L-V) 关系对于理解阻力练习期间的力产生至关重要.
- 准确的L-V分析需要适当的负载选择以确保有效性.
- 传统方法可能会使用比必要更高的负载,这可能会限制实际应用.
研究的目的:
- 为了识别最轻的负载,验证L-V关系的背.
- 为了比较L-V评估的修改的多点和现场两点方法.
- 为了确定可靠的L-V配置的最佳负载组合.
主要方法:
- 20名大学运动员以增量负荷 (20-90% 1RM) 进行了背.
- 平均速度 (MV) 在多点 (修改) 和两点 (现场) 测试中测量.
- 用收集的MV数据建模了个别的L-V关系.
主要成果:
- 经过修改的多点方法表明,同步有效率高达1RM的70%和80%.
- 现场的两点方法仅在20%和90%的1RM条件下有效 (r ≥0.810).
- 与标准方法相比,在重负荷下,在场内两点方法的平均速度更高.
结论:
- 对于修改的多点腰L-V评估,建议使用20%至70%的负荷1RM (MV~1.0m/s至0.6m/s).
- 在现场的两点方法需要最轻的和最重的负载 (20% & 90% 1RM) 的有效性 (MV ~1.0 m/s到0.4 m/s).
- 这些发现优化了负载选择,以准确评估背的L-V关系.
相关概念视频
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