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Journal of the Korean Academy of Rehabilitation Medicine 2007;31(4):394-399.
Reliability of Dynamic Posturography with Unstable Platform to Evaluate Seated Postural Control.
Hwang, Ji Hye , Park, Dae Sung , Cho, Nam Soon , Chang, Hyun Jung , Lee, Yong Taek , Piao, Yong Jun , Kwon, Tae Kyu
1Department of Physical Medicine and Rehabilitation, Samsung Medical Center, Sungkyunkwan University School of Medicine, Korea. hwanglee@skku.edu
2Center for Clinical Medicine, Sungkyunkwan University School of Medicine, Korea.
3Department of Biomedical Engineering, Chonbuk National University, Korea.
4Division of Bionics and Bioinformatics, Chonbuk National University, Korea.
자체 제작된 앉은 자세 균형 조절 평가장비의 반복 측정 신뢰도 평가
황지혜, 박대성1, 조남순, 장현정, 이용택, 박용군2, 권대규3
성균관대학교 의과대학 재활의학교실 및 1임상의학연구소, 2전북대학교 대학원 의용생체공학과 및 3생체정보공학부
Abstract
Objective
To examine the repeatability and the reproducibility of a new evaluation system for seated postural control.
Method
A total of 30 healthy volunteers (12 male, 18 female, mean age 25.1±3.4) participated in this study: 15 for repeatability and 15 for reproducibility study. We invented a new device for the assessment of seated postural control. The device was consisted of unstable platform, force plate, frame, safety harness, monitor and computer. Force plate on unstable platform measured the center of pressure (COP) of subject. COP maintaining time, COP moving time and COP sine curve trace were recorded. Each subject was tested three times with an interval of 3 days between the test sessions. The intraclass correlation coefficients (ICC) were calculated.
Results
There were no significant differences between male and female in each parameter. There were no significant differences in COP maintaining time, COP moving time and COP sine curve trace when tested repetitively. ICC for both the repeatability and the reproducibility showed good to excellent reliability for all variables (ICC, 0.60∼0.99) except posterior and right-posterior moving time.
Conclusion
This newly designed system for seated postural control using unstable platform proved to be a reliable tool. It may be a useful method to assess the seated postural control. (J Korean Acad Rehab Med 2007; 31: 394-399)
Key Words: Reliability, Postural balance


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