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Article type: Research Article
Authors: Cui, Wei; 1 | Huang, Lin; 1 | Tian, Yang | Luo, Hong | Chen, Shuang | Yang, Yan | Li, Yamei | Fu, Jing | Yu, Qian; * | Xu, Li; *
Affiliations: Department of Rehabilitation Medicine, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Sichuan, China
Correspondence: [*] Address for correspondence: Qian Yu and Li Xu, Department of Rehabilitation Medicine, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Sichuan, China. E-mail: [email protected] (Li Xu) and [email protected] Qian Yu.
Note: [1] These authors contribute equally.
Abstract: BACKGROUND:Mirror therapy has been gradually adopted for lower limb rehabilitation, but its efficacy and neural mechanism are not well understood. OBJECTIVE:This study aims to investigate the effect and neural mechanism of mirror therapy on lower limb rehabilitation after ischemic stroke by using resting state functional magnetic resonance imaging (rs-fMRI). METHODS:A single-blind and randomized controlled pilot study was conducted. 32 patients with ischemic stroke were included in this study and randomly divided into two groups – the control group (CT, n = 16) and the mirror therapy group (MT, n = 16). Both the CT and MT groups received medication and routine rehabilitation training. In addition, mirror therapy was added to the MT group 5 times a week for 30 minutes each time over a period of 3 weeks. Patients’ motor functions, functional connectivity (FC), regional homogeneity (ReHo), and fractional amplitude of low-frequency fluctuations (fALFF) were analyzed both before and immediately after the treatment. RESULTS:Patients’ motor functions showed significant improvement in both groups compared to those before treatment (p < 0.01). Moreover, the MT group showed significantly better improvement than the CT group after the treatment (p < 0.05). FC, ReHo and fALFF indicated enhanced neuronal activities in motor function-related brain regions in the MT group compared to the CT group. CONCLUSION:Mirror therapy promotes the recovery of lower limb motor functions in patients with ischemic stroke. Through the comparative rs-fMRI analysis, it is found that the mirror therapy promotes the functional reorganization of the injured brain.
Keywords: Ischemic stroke, mirror therapy, lower limb rehabilitation, resting-state functional magnetic resonance imaging (rs-fMRI)
DOI: 10.3233/NRE-210307
Journal: NeuroRehabilitation, vol. 51, no. 1, pp. 65-77, 2022
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