Journal of the Korean Academy of Clinical Electrophysiology (대한임상전기생리학회지)

The Korean Academy of Clinical Electrophysiology (대한임상전기생리학회)
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The Effect of Central Neural Adaptation by Neuromuscular Electrical Stimulation

신경근전기자극에 의한 중추신경원의 순응효과

  • Lee, Jeong-Woo (Dept. of Physical Therapy, Hyoin Hospital) ;
  • Seo, Sam-Ki (Dept. of Physical Therapy, Graduate School of Seonam University) ;
  • Yoon, Se-Won (Dept. of Physical Therapy, Jinju International University) ;
  • Kim, Yong-Eok (Dept. of Physical Therapy, Dongshin University) ;
  • Kim, Tae-Youl (Dept. of Physical Therapy, Dongshin University)
  • 이정우 (효인병원 물리치료실) ;
  • 서삼기 (서남대학교 대학원 물리치료학과) ;
  • 윤세원 (진주국제대학교 물리치료학과) ;
  • 김용억 (동신대학교 물리치료학과) ;
  • 김태열 (동신대학교 물리치료학과)
  • Published : 2007.03.31
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Abstract

The purpose of this study was to study for the change of neural adaptation by muscle contraction force when neuromuscular electrical stimulation(NMES) was applied. Sixteen subjects(8 male, 8 female) without neuromuscular disease volunteered to participate in the study. All subjects were divided into two subgroups: control(no electrical stimulation) group, NMES(50% maximal voluntary isometric contraction) group. NMES training program was performed in the calf muscle over three times a week for 12 weeks. Before and after experiment MVIC of ankle plantar flexor was measured by use of dynamometer. H-reflex and V-wave in tibial nerve were measured. The following results were obtained; MVIC and V/Mmax ratio were significantly increased in the electrical stimulation groups. However, H/Mmax ratio was not changed. It was closely relationship between MVIC and V/Mmax ratio. In this study, the effect of neural adaptation of central neural adaptation was found in this study. Accordingly, NMES means not only a change of muscle fiber and skeletal muscle volume but also a effect of neural adaptation of central neural drive. Also, it was found that there was closely relationship between MVIC and neural adaptation of central neural drive by NMES.

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