在患有和没有慢性中风的人群中,主动调整治疗的步态障碍
Tara Cornwell1, James M Finley1,2,3
1Department of Biomedical Engineering, University of Southern California, USA.
bioRxiv : the preprint server for biology
|November 24, 2025
概括
卒中后的人不会主动调整步态,以应对可预测的平衡障碍. 与健康个体不同,他们依赖于反应性策略,即使有明确的线索,表明中风后主动平衡控制受损.
科学领域:
- 神经科学是一个神经科学.
- 生物力学 生物力学
- 康复科学 康复科学 康复科学
背景情况:
- 平衡控制涉及到积极主动和反应式的战略.
- 卒中幸存者经常表现出运动和认知功能受损,可能会影响平衡控制.
- 之前的研究表明,中风后的个体有走路障碍.
研究的目的:
- 调查在可预测和意外干扰期间,在中风和没有中风的个体中,主动和反应性的步态控制策略.
- 为了确定视听线索是否可以引起个人中风后的前性步行调整.
主要方法:
- 使用跑步机扰动与明确的视听线索来模拟预期和意想不到的步态障碍.
- 在患有中风和没有中风的参与者中,在步行恢复期间测量了稳定性和联合工作的边际.
- 调节和未调节的干扰之间的比较步态反应.
主要成果:
- 两组在意外扰动后表现出较小的稳定边缘.
- 没有中风的个体主动减少了腿/关节的工作,并且在注意扰动时增加了稳定性边缘.
- 个人在中风后没有改变他们的策略,依赖于反应性调整,无论原因如何.
结论:
- 个人中风后主要使用反应平衡控制策略.
- 他们无法实施积极的步态调整,即使有精确的感官线索,与正常人不同.
- 影响主动控制的障碍可能会导致中风后持续的平衡缺陷.
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