Simulated knee flexion contracture effect on postural stability in elderly people

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How to Cite: Simulated knee flexion contracture effect on postural stability in elderly people, Jentashapir J Cell Mol Biol. Online ahead of Print ; 4(5):379-388.

ARTICLE INFORMATION

Jentashapir Journal of Health Research: 4 (5); 379-388
Published Online: October 31, 2014
Article Type: Research Article
Received: December 14, 2012
Accepted: March 10, 2013

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Abstract

Background: Postural instability is one of the common problems of aging. However, with increased age many systems of body such as musculoskeletal system are affected and changed. One of these changes is knee flexion contracture. The study aimed to investigate the simulated knee flexion contracture effects on postural stability in elderly.

Material and methods: 15 elderly subjects (11 men, 4 women) participated in this study. Postural stability at 0 and 30 degree of knee joints was evaluated utilizing of two rehabilitation knee braces (adaptable knee range of motion control brace). In 0 degree, braces did not cause any constraint whereas for knee joint in 30 degree, contracture was simulated so knee joints were in 30 degree flexion and extension not allowed. Postural stability in standing position with eyes open and closed were assessed by a force platform . COP data were analyzed to describe the stability of elderly persons.

Results: Result of this study showed that COP parameters in eyes closed condition were significantly increased (P<0.05).

In addition, these results showed that in 0 degree with eyes open, postural sway was in minimum range; and in 30 degree simulated knee flexion contracture (KFC) with closed eyes, postural sway was maximum.

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© 2014, School of Medicine, Ahvaz Jundishapur University of Medical Sciences. This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/) which permits copy and redistribute the material just in noncommercial usages, provided the original work is properly cited.

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