在不对称的表面刚性后,承重对称性发生变化,行走变硬
Mark Price1,2, Elena G Schell1, Jonaz Moreno Jaramillo1
1Department of Kinesiology, University of Massachusetts, Amherst, MA, USA.
Journal of neurophysiology
|January 30, 2026
概括
不对称的硬行走可以适应步态,增加一条腿的推开力. 这种方法有望改善运动障碍患者的承重和推进不对称性.
科学领域:
- 生物力学 生物力学
- 神经运动控制控制器
- 步态分析 步态分析
背景情况:
- 步行不对称是常见的运动障碍.
- 分带跑步机训练可以改善空间不对称性,但不能改善承重或推进不对称性.
- 不对称的表面刚性行走提供了一种新的方法来解决这些持续的步行缺陷.
研究的目的:
- 通过使用不对称的表面刚性行走来研究负重和推进不对称的神经运动适应.
- 测试假设,不对称的刚性行走引起后果在承重,推进和脚部 flexor 活动.
主要方法:
- 12名健康成年人在不对称的硬度条件下,在可调整硬度的跑步机上走了10分钟.
- 在干扰发生之前和之后,使用双带仪表跑步机记录了地面反应力 (GRF) 和时空测量.
- 此外,还测量了足部 flexor 肌肉活动 (胃角肌和足部肌).
主要成果:
- 不对称的刚性行走导致在推开时垂直GRF的2.8%不对称.
- 在扰动的侧面,足部曲器活动增加 (GAS: 20.7%,SOL: 9.5%).
- 中位垂直GRF降低 (2.2%),峰值制动GRF增加 (6.8%) 在扰动侧;推进GRF没有像假设的那样增加.
结论:
- 不对称的硬行走促进神经运动适应,导致目标肢体的推开相对增加,主要是在垂直部分.
- 进一步的研究是有必要的,以探索步态适应不对称的硬在现有的推开不对称的个人行走.
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