Asadi Borhan, Khodabakhshi Zahra, Naimi Sedigheh Sadat, Herrero Pablo, Ansari Noureddin Nakhostin, Lapuente-Hernandez Diego
iHealthy Research Group, Institute for Health Research Aragón, H.C.U. Lozano Blesa, Zaragoza, Spain.
Student Research Committee, School of Rehabilitation, Shahid Beheshti University of Medical Science, Tehran, Iran.
Physiother Res Int. 2025 Jul;30(3):e70065. doi: 10.1002/pri.70065.
BACKGROUND/OBJECTIVE: Dual-task training (DTT) positively impacts stroke recovery, but its effects on electroencephalography (EEG) using Fourier series analysis are under-researched. This study aimed to evaluate the effects of DTT on EEG in stroke patients by analyzing different EEG bands with fast Fourier transform (FFT).
Five participants with unilateral ischemic stroke completed 12 sessions of 15-min DTT, three times a week for 4 weeks. EEG data were recorded before and after the intervention, and FFT analysis was conducted. Assessments of upper limb function, elbow flexor muscle tone, and daily living activities were also performed.
FFT analysis showed a reduction in delta, theta, alpha, and beta bands post-DTT, while their correlation between measurement times remained consistent. These changes were somewhat reflected in the participants' improved clinical outcomes.
The results suggest that DTT positively affects EEG band frequencies, with a consistent correlation between pre- and post-intervention measurements. This indicates that FFT analysis could be a useful tool for assessing DTT's impact on stroke recovery.
背景/目的：双任务训练（DTT）对中风恢复有积极影响，但其对使用傅里叶级数分析的脑电图（EEG）的影响研究不足。本研究旨在通过快速傅里叶变换（FFT）分析不同脑电频段，评估DTT对中风患者脑电图的影响。
五名单侧缺血性中风患者完成了12节每次15分钟的DTT训练，每周三次，共4周。在干预前后记录脑电图数据，并进行FFT分析。还对上肢功能、肘屈肌肌张力和日常生活活动进行了评估。
FFT分析显示，DTT后δ、θ、α和β频段降低，而测量时间之间的相关性保持一致。这些变化在一定程度上反映在参与者改善的临床结果中。
结果表明，DTT对脑电频段频率有积极影响，干预前后测量之间具有一致的相关性。这表明FFT分析可能是评估DTT对中风恢复影响的有用工具。
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