冲刺跑者比远距离跑者有更长的阿基里斯肌动力臂
Bálint Kovács1, András Hegyi2, Gu Yaodong3
1Faculty of Sport Science, Ningbo University, Ningbo, PR China; Department of Kinesiology, Hungarian University of Sports Science, Budapest, Hungary.
Journal of biomechanics
|February 7, 2025
概括
冲刺跑者比远距离跑者拥有更长的阿基里斯肌动力臂,但这种差异与跑步表现无关. 较长的阿基里斯肌动力臂对精英运动员的跑步表现没有不利.
科学领域:
- 生物力学 生物力学
- 运动科学 运动科学 运动科学
- 人类运动分析 人类运动分析
背景情况:
- 关于阿基里斯肌动力臂对运行经济和性能的影响进行了讨论.
- 以前的研究经常使用简化的二维方法,缺乏精英运动员的数据.
研究的目的:
- 使用3D方法估计阿基里斯肌时刻臂长.
- 调查精英短跑者和长跑者的时刻臂长度和跑步表现之间的关联.
主要方法:
- 招募了29名精英跑者 (15名长途跑者,14名短跑者).
- 使用T1加权的MRI扫描在90°脚角度估计的阿基里斯肌时刻臂长.
- 分析了与个人最佳跑步表现的相关性.
主要成果:
- 冲刺跑者比远距离跑者展现出明显更长的阿基里斯肌动力臂,无论是绝对数值还是按身体高度正常化.
- 在任何一组中,阿基里斯肌时刻臂长和跑步表现之间没有发现显著的相关性.
- 较大的足部 flexor 肌肉大小可能会抵消较长的动力臂的潜在负面影响.
结论:
- 阿基里斯肌时刻臂长在冲刺和长距离跑步者之间有所不同,但似乎不会对表现造成不利影响.
- 实践者不应该担心肌肉大小增加对阿基里斯肌动力臂长的潜在负面影响.
- 长途跑者可能会从更短的时刻臂中受益,以抵御疲劳.
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