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Original Article

The Effect of High Frequency Repetitive Transcranial Magnetic Stimulation on the Motor Function in Post-Stroke Patients.

Sohn, Min Kyun , Kim, Bong Ok , Kim, Sung Gyum , Choi, Pil Soon , Hwang, Sun Hong
Journal of the Korean Academy of Rehabilitation Medicine 2010;34(2):168-173.
Department of Rehabilitation Medicine, School of Medicine, Chungnam National University, Korea. sgkkam@hanmail.net
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Objective
To evaluate the effects of high frequency repetitive transcranial magnetic stimulation (rTMS) of the affected hemisphere on the motor recovery and spasticity in chronic post-stroke hemiplegic patients. Method: Thirteen chronic stroke hemiplegic patients were randomized to receive real and sham rTMS. rTMS was carried out 10 times at a frequency of 10 Hz with 10 s stimulation followed by 50 s rest, totalling 1,000 stimulations to the affected primary motor cortex using an intensity of 100% of resting motor threshold of unaffected hemisphere. Median nerve H-reflex, modified Ashworth scale (MAS) at elbow and wrist, and manual function test (MFT) were measured at baseline and after 2 weeks of treatment. Results: High frequency rTMS resulted in increased H- reflex latency and decreased H-reflex amplitude and H/M ratio. Also MAS decreased and MFT score increased after 2 weeks of treatment. Conclusion: High frequency rTMS in the affected motor cortex might facilitate motor recovery and reduce spasticity in chronic stroke patients. (J Korean Acad Rehab Med 2010; 34: 168-173)

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