在反运动跳跃中评估下肢性:对计算方法之间的差异进行批判性分析
Jonas Enqvist1,2, L Joakim Holmberg3, Mathias Moberg1,2
1Department of physiology, nutrition and biomechanics, Swedish School of Sport and Health Sciences, Stockholm, Sweden.
一种新的下肢刚度计算方法,仅使用力板数据,证明了其高有效性. 这种方法准确地评估了度,这对于了解运动员的表现和受伤风险至关重要.
科学领域:
- 生物力学 生物力学
- 人类运动科学科学 人类运动科学
- 运动医学 运动医学
背景情况:
- 刚度 (k) 量化了材料对变形的抵抗力,对于评估神经肌肉功能,运动表现和受伤风险至关重要.
- 精确测量下肢度对于性能优化和伤害预防策略至关重要.
研究的目的:
- 为了比较一种新的下肢度计算方法 (k_fp) 仅使用力板数据与包含动作捕捉的既有方法.
- 为了确定 k_fp 在反运动跳跃 (CMJ) 的偏心阶段的并发有效性.
主要方法:
- 12名经受阻力训练的男性进行了最大力度的CMJ,同时使用双力板设置收集了同步的3D动力和动力数据.
- 下肢性,关节性和腿部性被计算为CMJs的异常阶段.
- k_fp与动力动力学方法和3D腿部度进行了比较.
主要成果:
- k_fp显示了高的并发有效性,显示了与动力动力学方法的强烈相关性 (r = 0.90-0.97,p < 0.05).
- 线性混合模型分析显示,k_fp和3D腿度值之间没有显著差异.
- 这些结果证实了k_fp方法的高并发有效性.
结论:
- k_fp方法提供了有效和有价值的数据来评估下肢硬度.
- 这种简化方法可与更复杂的3D方法相提并论,为性能分析和伤害风险评估提供了实际应用.
- 这些发现支持使用k_fp在评估回归体育决策的度.
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