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Repetitive Peripheral Magnetic Stimulation Enhances Modified Constraint-Induced Movement Therapy Outcomes After Stroke
Sponsor: The First Hospital of Jilin University
Summary
This is a retrospective observational study to investigate the effect of repetitive peripheral magnetic stimulation (rPMS) combined with modified constraint-induced movement therapy (m-CIMT) on upper extremity and finger fine motor function in patients with stroke hemiplegia. We hypothesize that rPMS priming immediately before m-CIMT can enhance wrist extensor activation during task practice and lead to better upper limb motor recovery than m-CIMT alone. Outcome measures include joint range of motion, muscle tone, grip strength, upper limb motor function, and activities of daily living.
Official title: Priming Wrist Extension With Repetitive Peripheral Magnetic Stimulation Enhances Modified Constraint-Induced Movement Therapy Outcomes After Stroke: A Retrospective Cohort Study
Key Details
Gender
All
Age Range
20 Years - 80 Years
Study Type
OBSERVATIONAL
Enrollment
50
Start Date
2022-01-01
Completion Date
2024-05-31
Last Updated
2026-04-30
Healthy Volunteers
No
Conditions
Interventions
rPMS
rPMS was administered using a pulsed magnetic field stimulator (M-100 Ultimate, Shenzhen Yingchi Technology Co., Ltd., China) with a circular stimulation coil (OY120A, diameter 120 mm). The patient was seated with the affected upper limb positioned on a treatment table, shoulder abducted to 90°, elbow flexed to 90°, forearm pronated, and wrist in a neutral position over the table edge. The stimulation coil was placed over the motor point of the radial nerve, approximately 5-7 cm proximal to the wrist joint on the dorsal forearm. The optimal stimulation site was determined by identifying the location that produced the most robust wrist extension movement when single pulses were delivered.
m-CIMT
The intervention comprised restraint of the unaffected upper extremity and repetitive, task-oriented practice with the affected upper extremity using shaping techniques. Functional tasks were selected from a standardized task database based on individual patient needs and baseline motor function. Tasks were graded to be slightly above the patient's current ability level. Each task was practiced for 30-120s per trial for 10 repetitions. Therapists provided verbal encouragement, performance feedback, and physical guidance as needed. The training intervention was 90min per session, once a day, 5 days a week, for 4 weeks.
Locations (1)
The First Hospital of Jilin University
Changchun, Jilin, China