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논문KCI 등재

능동 및 수동 운동과 기능적 전기자극에 의한 대뇌 피질의 활성화

The Cortical Activation by Functional Electrical Stimulation, Active & Passive Movement

최진호|이미영|장종성|장성호|한봉수|권용현
한국전문물리치료학회 (Korean Research Society of Physical Therapy)|2005.05|한국전문물리치료학회지 (Physical Therapy Korea)|제12권 제2호|pp. 73-80

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참고문헌

주제분류물리치료학

초록

Abstract

We investigated the activation of the cerebral cortex during active movement, passive movement, and functional electrical stimulation (FES), which was provided on wrist extensor muscles. A functional magnetic resonance imaging study was performed on 5 healthy volunteers. Tasks were the extension of right wrist by active movement, passive movement, and FES at the rate of .5 Hz. The regions of interest were measured in primary motor cortex (M1), primary somatosensory cortex (SI), secondary somatosensory cortex (SII), and supplementary motor area (SMA). We found that the contralateral SI and SII were significantly activated by all of three tasks. The additional activation was shown in the areas of ipsilateral S1 (n=2), and contralateral (n=1) or ipsilateral (n=2) SII, and bilateral SMA (n=3) by FES. Ipsilateral M1 (n=1), and contralateral (n=1) or ipsilateral SII (n=1), and contralateral SMA (n=1) were activated by active movement. Also, Contralateral SMA (n=3) was activated by passive movement. The number of activated pixels on SM1 by FES (12±4 pixels) was smaller than that by active movement (18± 4 pixels) and nearly the same as that by passive movement (13± 4 pixels). Findings reveal that active movement, passive movement, and FES had a direct effect on cerebral cortex. It suggests that above modalities may have the potential to facilitate brain plasticity, if applied with the refined-specific therapeutic intervention for brain-injured patients.

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