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Effects of Immobilization of the Ankle and Knee Joints on Postural Stability in Standing

한국전문물리치료학회지 2008년 15권 1호 p.30 ~ 37
황수진, 우영근, 전혜선,
소속 상세정보
황수진 ( Hwang Su-Jin ) - 연세대학교 대학원 재활학과
우영근 ( Woo Young-Keun ) - 안동과학대학교 물리치료학과
전혜선 ( Jeon Hye-Seon ) - 연세대학교 보건과학대학 물리치료학과

Abstract


This study was designed to examine the effects of temporary immobilization of the ankle and knee joints on standing in healthy young adults with the use of a postural control mechanism. The subjects were twenty-four college students (12 males and 12 females, aged between 20 and 28). A Biodex balance system SD 950-302 and its software were used to measure indirect balance parameters in standing. Each subject underwent postural stability tests in 4-different joint conditions: free joints, ankle immobilization only, knee immobilization only, and ankle and knee immobilization. In addition, the postural stability test was conducted once with the subject’s eyes open and once with the eyes closed conditions. For data analysis of the postural stability tests, the overall stability index, antero-posterior stability index, and medie-lateral stability index were recorded. The overall stability index (p=.000) and medial-lateral index (p=.003) were significantly greater different conditions with eyes closed in postural stability. Therefore, the eyes closed condition is expected to be used as an effective postural stability training for treatment planning in patients with unstable postures. In addition, training based on the dynamic multi-segment model can improve postural stability and is available to therapeutic programs, helping people with unstable balance to reduce their risk of falling.

키워드

Biomechanical constraint;Immobilization;Postural stability

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