title: [Analysis of corticomuscular coherence during rehabilitation exercises after stroke].
abstract: To better evaluate neuromuscular function of patients with stroke related motor dysfunction, we proposed an effective corticomuscular coherence analysis and coherent significant judgment method. Firstly, the related functional frequency bands in the electroencephalogram (EEG) were extracted via wavelet decomposition. Secondly, coherence were analysed between surface electromyography (sEMG) and sub-bands extracted from EEG. Further more, a coherent significant indicator was defined to quantitatively describe the similarity in certain frequency domain and phase lock activity between EEG and sEMG. Through the analysis of corticomuscular coherence during knee flexion-extension of stroke patients and healthy controls, we found that the stroke patients exhibited significantly lower gamma-band corticomuscular coherence in performing the task with their affected leg, and there was no statistically significant difference between their unaffected lag and the healthy controls, but with the rehabilitation training, the bilateral difference of corticomuscular coherence in patients decreased gradually.
authors.forename: Peipei
authors.initials: P
authors.lastname: Ma
authors.forename: Yingya
authors.initials: Y
authors.lastname: Chen
authors.forename: Yihao
authors.initials: Y
authors.lastname: Du
authors.forename: Yuping
authors.initials: Y
authors.lastname: Su
authors.forename: Xiaoguang
authors.initials: X
authors.lastname: Wu
authors.forename: Zhenhu
authors.initials: Z
authors.lastname: Liang
authors.forename: Ping
authors.initials: P
authors.lastname: Xie
mesh_terms: D016022:Case-Control Studies; D004569:Electroencephalography; D004576:Electromyography; D005081:Exercise Therapy; D006801:Humans; D007717:Knee / Q000502:physiology; D018482:Muscle, Skeletal / Q000502:physiology*; D016059:Range of Motion, Articular; D000071939:Stroke Rehabilitation