在分裂皮带跑步机行走期间皮层激活在患有帕金森病的人和健康的对照者中
Femke Hulzinga1, Paulo Henrique Silva Pelicioni2,3, Nicholas D'Cruz1
1Neurorehabilitation Research Group (eNRGy), Department of Rehabilitation Sciences, KU Leuven, Leuven, Vlaams-Brabant, Belgium.
Neurorehabilitation and neural repair
|March 25, 2025
概括
患有帕金森病 (PwPD) 的人很难适应不均表面的步态. 他们的大脑活动在分带行走期间增加,虽然显著,但并没有改善步态,这表明它可能是不适应性的.
科学领域:
- 神经科学是一个神经科学.
- 步态分析 步态分析
- 帕金森病研究 帕金森病研究
背景情况:
- 在患有帕金森病 (PwPD) 的人群中,步行适应不对称条件受损.
- 了解PwPD中步行困难背后的皮质机制对于开发有效干预措施至关重要.
研究的目的:
- 为了研究PwPD和健康对照群在绑带和分带跑步机上行走时皮质活动的差异.
- 为了将皮质活动与PwPD的步态适应能力相关联.
主要方法:
- 功能近红外光谱 (fNIRS) 测量了前额叶皮质,SMA,PMC和PPC中的氧化血红蛋白 (HbO2).
- 42名PwPD (Hoehn和Yahr第2-3阶段) 和42名对照人在绑带 (TB) 和分带 (SB) 条件下在跑步机上行走.
- 步行适应量化通过步骤长度不对称性和可变性.
主要成果:
- 与对照组相比,PwPD在SB期间表现出更差的步态适应.
- 在前运动皮质 (PMC) 和后壁皮质 (PPC) 中,PwPD显示HbO2比对照组更高,无论走路条件如何.
- 在SB期间增加补充运动区域 (SMA) 活动在PwPD中观察到,但不是对照组;更高的PPC活动与较差的步态适应相关.
结论:
- 在常规和适应性行走过程中,PwPD表现出增强的皮质处理 (增加PMC和PPC活动).
- 在PwPD中,这种增强的皮质活动并没有改善步态不对称,这表明存在潜在的不适应性补偿机制.
- 大脑活动升高可能反映了PwPD在适应不对称的行走环境时所面临的重大挑战.
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