Chinese Journal of Rehabilitation Theory and Practice ›› 2025, Vol. 31 ›› Issue (5): 505-512.doi: 10.3969/j.issn.1006-9771.2025.05.002

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Effect of electromyographic perception-assisted robotic training combined with paired association stimulation on upper limb function in hemiplegic patients after stroke

BAI Min1, CAO Lihua1, YE Ziqi2, ZHOU Dingjie3, LI Xueping2()   

  1. 1. Department of Geriatrics, Nanjing Pukou People's Hospital (Liangjiang Hospital, Southeast University), Nanjing, Jiangsu 211899, China
    2. Department of Rehabilitation Medicine, Nanjing Hospital (The First Hospital of Nanjing), Nanjing Medical University, Nanjing, Jiangsu 210006, China
    3. Jiangsu Health Development Research Center/National Health Commission Key Laboratory of Contraceptives Vigilance and Fertility Surveillance/Jiangsu Provincial Medical Key Laboratory of Fertility Protection and Health Technology Assessment, Nanjing, Jiangsu 210000, China
  • Received:2025-03-07 Revised:2025-04-07 Published:2025-05-25 Online:2025-05-26
  • Contact: LI Xueping, E-mail: lixueping6504@163.com
  • Supported by:
    Jiangsu Health Vocational College Project (General)(JKC2022084);Guidance Project for Social and Technological Development in Pukou District(S2024-7);Medical Research Project of Jiangsu Provincial Health Commission(Z2021047);Jiangsu Provincial Health and Development Research Center Project(JSHD2022034)

Abstract:

Objective To explore the effect of electromyographic perception-assisted robotic training combined with paired association stimulation on upper limb function in hemiplegic patients after stroke.
Methods From December, 2023 to December, 2024, 120 hemiplegic patients after stroke in Nanjing Pukou People's Hospital (Liangjiang Hospital, Southeast University) were randomly assigned to control group (n = 60) and experimental group (n = 60) using random envelope method. Both groups received medication and routine rehabilitation training, the control group received traditional muscle strength training combined with paired associative stimulation, and the experimental group received electromyographic perception robot-assisted training combined with paired association stimulation. Fugl-Meyer Assessment-Upper Extremities (FMA-UE), modified Barthel Index (MBI), and modified Ashworth Scale (MAS) were conducted before and four weeks after treatment. The surface electromyography (sEMG) was used to detect the root mean square (RMS) and integrated electromyography (iEMG) of the biceps and triceps brachii, and to calculate the corresponding co-activation ratio (CR).
Results Nine cases in the control group and four cases in the experimental group dropped down. After treatment, RMS of triceps, CR of flexion elbow, the scores of FMA-UE and MBI increased in both groups (|t| > 2.219, P < 0.001), and were better in the experimental group than in the control group (|t| > 2.084, P<0.05); the biceps RMS and CR of elbow extension significantly increased in experimental group (|t| > 3.863, P < 0.001), and were better in the experimental group than in the control group (|t|> 2.498, P < 0.05). The MAS score of biceps improved in experimental group after treatment (Z = -4.097, P < 0.001), and was better in the experimental group than in the control group (Z = -3.459, P < 0.01).
Conclusion Electromyographic perception robot-assisted training combined with paired association stimulation can improve the upper limb motor function and the ability of daily living in hemiplegic patients after stroke.

Key words: stroke, electromyographic perception-assisted robotic training, paired association stimulation, upper extremity function

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