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http://dx.doi.org/10.9718/JBER.2009.30.6.495

Study on the Characteristic of Dynamic Postural Control during Horizontal Translation of Support Surface  

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.)
Publication Information
Journal of Biomedical Engineering Research / v.30, no.6, 2009 , pp. 495-502 More about this Journal
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.
Keywords
Postural control; Balance; Motion base; Horizontal translation;
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Times Cited By KSCI : 2  (Citation Analysis)
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