Relation Between Sensorimotor Rhythm During Motor Attempt/Imagery and Upper-Limb Motor Impairment in Stroke
Relation Between Sensorimotor Rhythm During Motor Attempt/Imagery and Upper-Limb Motor Impairment in Stroke
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DOI：
10.1177/15500594211019917
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发表时间：
2021-05-24
影响因子：
2
通讯作者：
Zhu, Xiangyang
中科院分区：
文献类型：
--
作者：
Chen, Shugeng;Shu, Xiaokang;Zhu, Xiangyang
基于运动尝试（MA）/运动想象（MI）的脑机接口（BCI）是一种新兴的运动障碍康复技术。本研究旨在探讨脑电感觉运动节律与运动障碍的关系，为脑机接口设计提供参考。28名在亚急性或慢性阶段具有不同水平运动功能障碍和痉挛状态的卒中幸存者被纳入研究以执行MA和MI任务。计算运动任务期间和之后即刻的事件相关去同步化（ERD）/事件相关同步化（ERS）。采用Fugl-Meyer评定量表（FMA）和改良Ashworth量表（MAS）评定上肢运动功能障碍和痉挛状态。在MI任务中，FMA总分与对侧半球的ERS呈正相关（P <0.05），在MA任务中，FMA总分与两侧半球的ERD呈负相关（P <0.05）。在MA任务中，腕屈肌的MAS评分与同侧半球的ERD呈负相关（P <0.05）。这表明，运动功能障碍可能更相关的ERS在MI任务和ERD在MA任务，而痉挛可能更相关的ERD在MA任务。
Motor attempt (MA)/motor imagery (MI)-based brain-computer interface (BCI) is a newly developing rehabilitation technology for motor impairment. This study aims to explore the relationship between electroencephalography sensorimotor rhythm and motor impairment to provide reference for a BCI design. Twenty-eight stroke survivors with varying levels of motor dysfunction and spasticity status in the subacute or chronic stage were enrolled in the study to perform MA and MI tasks. Event-related desynchronization (ERD)/event-related synchronization (ERS) during and immediately after motor tasks were calculated. The Fugl-Meyer assessment scale (FMA) and the modified Ashworth scale (MAS) were applied to characterize upper-limb motor dysfunction and spasticity. There was a positive correlation between FMA total scores and ERS in the contralesional hemisphere in the MI task (P < .05) and negative correlations between FMA total scores and ERD in both hemispheres in the MA task (P < .05). Negative correlations were found between MAS scores of wrist flexors and ERD in the ipsilesional hemisphere (P < .05) in the MA task. It suggests that motor dysfunction may be more correlated to ERS in the MI task and to ERD in the MA task while spasticity may be more correlated to ERD in the MA task.