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KMID : 0361420070310020176
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Journal of Korean Academy of Rehabilitation Medicine
2007 Volume.31 No. 2 p.176 ~ p.181
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Computerized Analysis of Postural Instability in Parkinson’s Disease
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Yoon Ki-Sung
Kim Sang-Beom
Lee Kyeong-Woo
Kwak Hyun
Kim Won-Bok
Kim Jae-Woo
Cheon Sang-Myung
Lee Geon-Cheol
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Abstract
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Objective: To evaluate and quantify the postural instability in patients with Parkinson’s disease (PD) using computerized posturography.
Methods: Twenty subjects with PD group (10 men, 10 women) and 20 control group (10 men, 10 women) were matched for age and sex. Average Hoehn-Yahr stage of PD group was 2.3+/-0.3. Sensory dysfunction, voluntary motor impairments and functional limitation were measured by determining the subject’s response to reduced or altered sensory and voluntary motor control of balance.
Results: PD subjects demonstrated wider area of sway (degrees) under eye closed condition in modified sensory organization test and lower directional control (%) in right/left rhythmic weight shift (p<0.05). No significant difference was observed for sit to stand. Wider area of turn sway (degrees) and longer turn time (sec) during left step/quick turn were demonstrated in PD subjects (p<0.05).
Conclusion: Computerized posturography shows that sensory dysfunction scores, voluntary motor impairment scores and functional limitation test scores were reduced in patients with PD.
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KEYWORD
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Postural Instability, Parkinson’s Disease, Balance master system
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