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Journal of the Korean Academy of Rehabilitation Medicine 2003;27(2):224-227.
Modulation of Human Somatosensory Cortical Excitability by Repetitive Peripheral Nerve Stimulation.
Jung, Han Young , Kim, Seung Yeul , Choi, Hyun Chul , Park, Young Ok
1Department of Rehabilitation Medicine, Inha University Medical School, Korea. rmjung@inha.ac.kr
2Department of Rehabiltation Medicine, Seoul Veterans Hospital, Korea.
반복적 말초신경 전기자극이 대뇌감각피질에 미치는 영향
정한영, 김승열, 최현철, 박영옥1
인하대학교 의과대학 재활의학교실, 1서울보훈병원 재활의학과
To investigate whether the somatosensory cortical excitability could be modulated by repetitive electrical stimulation (RES) on the tibial nerve at human ankle joint.

The subjects were 10 healthy volunteers. The study was composed of 3 sessions: first session, baseline evaluation; second session, RES with a intensity for proprioceptive stimulation on tibial nerve at the right ankle for 3 different duration of 30 minutes, 1 hour, and 2 hours; third session, repeat of baseline evaluation after RES (post- RES evaluation). The baseline evaluation include somatosensory evoked potential study with stimulation of right tibial nerve and compound muscle action potential (CMAPs) of tibial nerve recorded at abductor hallucis and H reflex. The amplitude of each study were measured and compared between baseline evaluation and post-RES evaluation using Kruscal-Wallis test.

There was no significant change in amplitudes of SSEP, CMAP and H reflex between baseline evaluation and post-RES evaluation of 30 minutes, 1 hour and 2 hours.

This study suggests that chronic repetitive proprioceptive afferent nerve stimulations could not modulate primary somatosensory cortex in healthy subjects. However, we could not rule out the limitations of sensitivity of somatosensory evoked potential study. (J Korean Acad Rehab Med 2003; 27: 224-227)

Key Words: Repetitive nerve stimulation, Somatosensory cortex, Cortical reorganization


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