假肢硬度和起飞板硬度对远跳表现的影响
Kara R Ashcraft1, Alena M Grabowski2,3
1Applied Biomechanics Lab, Department of Integrative Physiology, University of Colorado, 354 UCB, Boulder, CO, 80309, USA. Kara.ashcraft@colorado.edu.
Scientific reports
|February 5, 2026
概括
对于截肢的运动员来说,跑步特定的假肢刚度并没有显著影响远跳表现. 然而,对于非截肢运动员来说,一个不太的起飞平台改善了跳跃距离,这表明平台合规是关键.
科学领域:
- 生物力学 生物力学
- 运动科学 运动科学 运动科学
- 假肢的使用 假肢的使用
背景情况:
- 远跳的表现受上升速度和起飞技术的影响.
- 假肢技术和起飞表面是截肢和非截肢患者体育表现的关键因素.
研究的目的:
- 调查跑步特异性假肢 (RSP) 刚度对跨截肢 (TTA) 的运动员跳跃表现的影响.
- 检查起飞平台刚度对非截肢运动员跳跃表现的影响.
- 为了在不同的设备条件下比较TTA运动员和非截肢运动员之间的远跳表现.
主要方法:
- 两名TTA运动员使用RSP,硬度不同 (36.0,39.5,43.9 kN/m).
- 八名非截肢运动员使用了规则 (1630 kN/m) 和合规 (84.0,90.0 kN/m) 刚性的起飞平台.
- 测量了所有参与者在不同条件下的跑步速度和跳跃距离.
主要成果:
- TTA运动员在RSP硬度变化中,跳跃距离或跑步速度没有显著差异.
- 非截肢运动员的跳跃距离随着起飞平台刚度的降低和跑步速度的增加而增加.
- 与规则平台相比,非截肢者在合规平台上跳得更远,比推RSP的TTA运动员跳得更远.
结论:
- 起飞平台的刚性显著影响非截肢运动员的远跳表现.
- 在研究的TTA运动员中,RSP度似乎不是跳跃表现的限制因素.
- 在这种情况下,平台合规性,而不是RSP刚性,是优化远跳性能的更关键变量.
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