操纵跑步脚的冲击角度对骨内部负荷的影响
Sanghyuk Han1,2, Jeheon Moon3, Jusung Lee2
1Public Health and Sport Sciences, University of Exeter, Exeter, UK.
Scandinavian journal of medicine & science in sports
|May 12, 2025
概括
在跑步时前脚的撞击会增加骨负荷,特别是在早期的姿势阶段. 这表明,切换到前脚打击可能不会降低,甚至可能增加骨应力损伤的风险.
科学领域:
- 生物力学 生物力学
- 运动医学 运动医学
- 整形外科 整形外科 整形外科
背景情况:
- 部应力损伤是跑步者们常见的担忧.
- 跑步期间的足球撞击模式可能会影响内部骨负荷和受伤风险.
研究的目的:
- 在运行时量化内带负荷,并强加后脚和前脚的冲击模式.
- 为了比较穿过习惯的后脚,强加的后脚和强加的前脚的带负荷.
主要方法:
- 十九个习惯性的后脚罢工者用偏好的,强加的后脚和强加的前脚罢工跑.
- 同步收集力和运动捕获数据.
- 肌肉骨模型和束理论用于估计骨曲折时刻.
- 计算每公里累积加权的脉冲.
主要成果:
- 跨越足部冲击模式 (p < 0.001) 观察到尖部曲时刻的显著差异.
- 强加前脚冲击显著增加了小腿骨负荷,特别是在早期到中期的姿势 (p < 0.001).
- 强加后脚冲击导致曲时刻较低,而不是通常的后脚和强加前脚冲击 (p < 0.001).
- 每公里的累积加权冲动在强加前脚冲击时显著增加 (p = 0.001).
结论:
- 用强加的前脚冲击跑步会导致比后脚冲击更高的骨负荷.
- 对脚部 flexors 增加的机械要求有助于增加前脚打击的小腿骨负荷.
- 从习惯的后脚转向前脚冲击可能对寻求减少带负荷的跑步者来说没有好处.
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