脂肪和无脂肪体重指数之间的关联在跑步期间减轻冲击
Bernard X W Liew1, Xuqi Zhu2, Xiaojun Zhai3
1School of Sport, Rehabilitation and Exercise Sciences, University of Essex, Colchester, Essex, United Kingdom.
Journal of biomechanics
|March 3, 2024
概括
较高的身体质量,特别是体和腿部的无脂肪质量,改善了跑步期间的减震效果,可能降低了受伤风险. 内脏脂肪质量也在高频冲击吸收中发挥作用.
科学领域:
- 生物力学 生物力学
- 人体生理学 人体生理学
- 运动医学 运动医学
背景情况:
- 跑步时的高冲击冲击与受伤风险的增加有关.
- 身体构成可能会影响减震机制.
- 了解这些关系可以为伤害预防策略提供信息.
研究的目的:
- 量化用双能X射线吸收计 (DEXA) 测量身体组成与跑步时的冲击减弱之间的关系.
- 探索不同的身体质量成分 (脂肪和无脂肪质量) 如何影响不同频率域的冲击吸收.
主要方法:
- 24名活跃的成年人接受了DEXA扫描,以评估身体组成.
- 在跑步机上运行时,在骨,骨盆和头部记录了线性加速,速度为1.00Fr.
- 在时间和频率域 (3-8 Hz和9-20 Hz) 中计算了冲击减弱指数,并进行了统计分析,包括皮尔森相关性和规则化回归.
主要成果:
- 较大的干部,腿部和全身无脂肪质量与更高频率范围 (9-20 Hz) 的头部和骨盆之间的功率减弱增加有显著联系.
- 内脏脂肪质量成为骨盆和头部之间高频功率减弱的最强有力的预测因素.
- 这些发现表明,被动和活性组织有助于减轻冲击,质量可能在降低受伤风险方面发挥有益作用.
结论:
- 身体组成,特别是无脂肪质量和内脏脂肪,显著影响跑步期间的减震.
- 某些区域的质量增加可能会增强冲击吸收能力,可能降低与跑步相关的受伤风险.
- 减肥计划应考虑对减震和受伤风险的潜在影响.
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