Evaluation of Postural Control by Off-vertical Axis Rotation

탈수직축 회전자극을 이용한 자세조절기능의 평가

  • 김규겸 (원광대학교 의과대학 생리학교실, 원광대학교 대학원 전자공학과) ;
  • 이태호 (원광대학교 대학원 전자공학과) ;
  • 김주환 (원광대학교 대학원 전자공학과) ;
  • 고종선 (원광대학교 대학원 전자공학과) ;
  • 박병림 (원광대학교 의과대학 생리학교실)
  • Published : 1999.11.01

Abstract

Off-vertical axis rotator was developed to differentiate each function of the canal and otolith in the vestibular system and evaluate subjective symptoms during postural change. Eye movement induced by various types of rotation was measured in normal subjects. Nystagmus with fast component corresponding to direction of rotation was occurred by sinusoidal earth vertical axis rotation, and the gain of eye movement in vestibuloocular reflex (VOR) was lower than in visual vestibuloocular reflex (VVOR) and higher than in visual fixed vestibuloocular reflex (VFX). Degree of dizziness was proportioned to degree of gain. off-vertical axis rotation was produced severe dizziness than earth vertical axis rotation. These results suggest stimulation of the otolith should be minimized to make a stable and pleasant condition in work and travel.

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