Journal of Biomedical Engineering Research (대한의용생체공학회:의공학회지)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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Evaluation of Postural Stability according to characteristics of Electrical Stimulation on the ankle muscles

족관절 근육에 인가한 전기 자극의 특성에 따른 자세안정성 평가

  • Lee, S.Y. (Dept. of Healthcare Engineering, Graduate School, Chonbuk National Univ.) ;
  • Yu, M. (Division of Biomedical Engineering, Chonbuk National Univ.) ;
  • Kim, N.G. (Sixtyplus Co.) ;
  • Kim, D.W. (Division of Biomedical Engineering, Chonbuk National Univ.)
  • 이선연 (전북대학교 대학원 헬스케어공학과) ;
  • 유미 (전북대학교 공과대학 바이오메디컬공학부) ;
  • 김남균 ((주)식스티플러스) ;
  • 김동욱 (전북대학교 공과대학 바이오메디컬공학부)
  • Published : 2009.12.31
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Abstract

This study is about to evaluation of postural stability according to characteristics of electrical stimulation on the ankle muscles. We measured body sway(center of pressure, COP) when various parameters of electrical stimulation was applied to ankle muscles in stable and unstable posture. Subjects consisted of 10 young adults, and electrical stimulation was delivered on right and left of tibialis anterior and Achilles tendon. The body sway was measured during electrical stimulation of three duty cycle and frequencies in stable posture and three amplitudes of sensory threshold in unstable posture. Consequently, the COP Shift is higher during electrical stimulation of 1/30(duty ratio) and 100Hz(frequency) in stable posture. In unstable posture, 100% amplitude of sensory threshold induced postural stability. These findings are important for the rehabilitation system of postural stability and the use of electrical stimulation as somatosensory information.

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References

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