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Journal of the Korean Academy of Rehabilitation Medicine 1993;17(4):632-641.
A study on the effect of improving hand function by electromyographically trigged electric muscle stimulation.
Kim, Jin Ho , Han, Tai Ryoon , Lee, Shi Uk
Department of Rehabilitation Medicine, Seoul National University College of Medicine
근전도를 통한 근육전기자극요법에 의한 수부기능 향상의 효과에 관한 연구
김진호, 한태륜, 이시욱
서울대학교 의과대학 재활의학교실
Abstract

The effect of electromyographically triggered electric muscle stimulation was evaluated in 41 consecutive postcerebral vascular accident patients. We classified the patients into 3 groups according to the duration from onset to the start of the treatment. The time from onset of the 3 groups were less than 3 months(group I), 3 to 6 months(group II), more than 6 months(group III).

The patients were treated for 6 months and the effect of the treatment was evaluated for quantitative EMG interference of extensor digitorum communis muscle, active range of motion of midcarpal joint of the hand, spasticity of long finger flexor. To evaluate the effect of early treatment, we compared the effect of treatment with age, sex and duration matching control group. The control group consisted of 16 postcerebral vascular accident patients.

The early treated group(group I) showed more improvement than the control group in all 3 evaluation parameters. Group I showed more improvement than group II and group III. Group III improved especially in the spasticity of long finger flexor. All patients who showed improvement at 6 months of follow up improved within 2 months since the start of treatment, which means for the evaluation of the effect of treatment follow up evaluation must be conducted after 2 months of treatment. The factors for good treatment response were early treatment, Brunnstrom stage of the hand and somatosensory evoked potential of median nerve.

Key Words: EMG-EMS, EMG-EMS, Hemiplegia, Biofeedback, Hand
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