可靠性和急性变化在负载-速度配置在反向运动跳跃练习的过程中,以不同的速度为基础的阻力训练协议在休跑步者
Alejandro Pérez-Castilla1,2, Santiago A Ruiz-Alias3, Rodrigo Ramirez-Campillo4
1Department of Education, Faculty of Education Sciences, University of Almería, Almería, Spain.
European journal of sport science
|April 29, 2025
概括
负载-速度关系是可靠的评估训练适应,但个体反应在检测变化下肢力量以速度为基础的训练 (VBT) 协议后显著不同.
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-速度关系 (LVR) 是强度和调节的一个关键概念,用于理解外部负载和运动速度之间的关系.
- 基于速度的训练 (VBT) 利用这种关系来规定和监测训练强度和疲劳.
- 评估LVR变量的可靠性和敏感性对于有效实施VBT至关重要.
研究的目的:
- 为了评估LVR变量 (L0,v0,A线) 在不同测试会话中的反移动跳跃期间的可靠性.
- 根据各种VBT协议,确定LVR变量的可行性,以检测下部机身最大机械容量的急性变化.
- 为了比较不同VBT协议 (不同强度和速度损失) 对LVR参数的影响.
主要方法:
- 21名休跑者参加了四个随机的VBT协议 (60%或80%1RM,速度损失10%或30%).
- 在每个VBT协议之前和之后的反运动跳跃中使用两点方法评估LVR.
- 使用变化系数 (CV) 和类内相关系数 (ICC) 评估可靠性;灵敏度由LVR变量的变化确定.
主要成果:
- LVR变量显示可接受的可靠性 (CV ≤5.61%,ICC ≥0.83),除了一些轻微的例外.
- 速度轴截止点 (v0) 和LVR线 (A线) 下的面积在VBT协议后显著减少,其中包括30%的速度损失 (VBT60-30和VBT80-30).
- 在使用10%速度损失 (VBT60-10和VBT80-10) 的方案后,没有观察到LVR变量的显著变化.
结论:
- 在反运动跳跃中,LVR是评估训练适应性的可靠指标.
- LVR变量对高重复VBT协议 (30%的速度损失) 引起的疲劳敏感.
- 对VBT协议的个体反应可能非常可变,这会影响LVR用于监测急性机械变化的实际应用.
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