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KMID : 1020120070050010033
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Journal of the Korean Academy of Clinical Electrophysiology
2007 Volume.5 No. 1 p.33 ~ p.43
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Influence of Functional Electrical Stimulation during Gait Training on Motor Unit Action Potential
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Kang Yang-Hoon
Seo Sam-Ki
Lee Jeong-Woo
Yoon Se-Won
Kim Young-Eok
Kim Tae-Youl
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Abstract
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This study divided 35 hemiplegia patients into control group having standard physical therapy and gait training and functional electrical stimulation(FES) group using FES during gait training in order to examine the effects of applying FES to ankle joint dorsiflexor on motor unit action potential. Stimulation conditions of FES were pulse rate 35 pps, pulse width , and on-time 0.3 second, treatment hour was 30 min. and treatment period was once a day for five days a week through six weeks. For functional evaluations before and after treatment, root mean square(RMS) were measured and the following conclusions were obtained. : In RMS analysis of motor unit action potential, gastrocnemius was significantly reduced in both weight bearing(p<.001) and bearing condition (p<.05). In conclusion, application of FES to hemiplegia patients in recovery stage during gait training decreased RMS and it was interpreted that it was caused by mitigation of muscular spasticity by reduction of motor unit.
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KEYWORD
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FES, Spasticity, Motor Unit Action Potential
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