Journal of Biomedical Engineering Research (대한의용생체공학회:의공학회지)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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Study on the Characteristic of Dynamic Postural Control during Horizontal Translation of Support Surface

지지면의 수평 진동에 따른 동적 자세 제어 특성에 관한 연구

  • Oh, G.Y. (Dept. of Healthcare Engineering Graduate School, Chonbuk National Univ.) ;
  • Piao, Y.J. (Dept. of Biomedical Engineering Graduate School, Chonbuk National University) ;
  • Kwon, T.K. (Div. of Biomedical Engineering, College of Engineering, Chonbuk National Univ.) ;
  • Kim, N.G. (Research Center of Healthcare & Welfare Instrument for the Aged, Chonbok National Univ.)
  • 오가영 (전북대학교 헬스케어공학과) ;
  • 박용군 (전북대학교 의용생체공학과) ;
  • 권대규 (전북대학교 바이오메디컬공학부) ;
  • 김남균 (전북대학교 고령친화복지기기연구센터)
  • Published : 2009.12.31
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Abstract

This paper investigated the effects of dynamic postural control for maintaining upright standing on a support surface during continuous sinusoidal horizontal translation in anterior-posterior direction. 15 healthy young subjects participated in this experiment. The analysis of body movement was analyzed using Ariel Performance Analysis System. Motion pattern was analyzed by seven markers on subject's body. Position of markers were head, chest, hip, right knee, left knee, right ankle and left ankle. Seven different frequencies of support surface were employed ; 0.1, 0.25, 0.5, 0.75, 1, 1.5 and 2Hz at 2cm of moving path of motionbase. The experiments were performed dynamic postural reponses at the condition of eye open. The results showed that median frequency of the knee, ankle were increased in all frequency bands. Following the frequency of perturbation increased, postural control strategy was changed from ankle strategy to combined strategy. The experiment results could be applied to the dynamic postural training for the elderly and the rehabilitation training for the patients to improving the ability of postural control.

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References

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