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Volume 24 |
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Number 3 |
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Published by : PROFESSIONAL MEDICAL PUBLICATIONS |
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Volume 24 |
April - June 2008 (Part-II) |
Number 3 |
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Evaluation of postural balance using the
biodex balance system in subjects
with and without low back pain
Noureddin Karimi1, Ismaeil Ebrahimi2, Sedigheh Kahrizi3, Giti Torkaman4
ABSTRACT
Objective: To evaluate the reliability of dynamic standing balance in individuals with and without low back pain (LBP) using Biodex Balance System (BBS) and to compare the balance indices between two groups.
Design: A cross-sectional non-experimental design.
Setting: Biomechanics laboratory and Saba spine specific physical therapy clinic, University of social welfare and rehabilitation sciences, Tehran, Iran.
Methodology: Twenty three male patients with LBP (mean age: 30.4 ± 6.5 years) and twenty age-matched healthy male subjects (mean age: 29.8 ± 6.4 years) participated in this study. Medial–lateral stability index (MLSI), Anterior–posterior stability index (APSI) and an Overall stability index (OSI) were measured in two measurement sessions using the BBS. Balance was measured in four conditions; bilateral and unilateral stance with eyes open and eyes closed; over a period of 20s.
Results: The results showed that ICC in healthy subjects and those with LBP was between (0.91-0.95) and (0.88-0.96) respectively. The Bland-Altman plot of agreement in balance scores between tests and retests demonstrated good agreement. A significant difference was found in MLSI and OSI between subjects with and without LBP. However, no significant difference was detected in APSI between two groups.
Conclusions: The findings of this study showed high reliability for BBS to evaluate dynamic postural balance in subjects with and without LBP. It seems that MLSI and OSI significantly differ between subjects with and without LBP.
KEY WORDS: Biodex Balance System, Low Back Pain, Balance.
Pak J Med Sci April - June 2008 (Part-II) Vol. 24 No. 3 372-377
How to cite this article:
Karimi N, Ebrahimi I, Kahrizi S, Torkaman G. Evaluation of postural balance using the biodex balance system in subjects with and without low back pain. Pak J Med Sci 2008;24(3):372-7.
1. Nooreddin Karimi, PT, M.Sc, PhD
candidate,
Tarbiat Modares University,
Tehran, Iran. Address all correspondence to N Karimi.
2. I Ebrahimi, PT, PhD,
Professor, Faculty of Rehabilitation,
Iran University of Medical Sciences,
Tehran, Iran.
3. S Kahrizi PT, PhD,
Assistant Professor,
Tarbiat Modares University,
Tehran, Iran.
4. G Torkaman PT, PhD,
Assistant Professor,
Tarbiat Modares University,
Tehran, Iran.
Correspondence
Noureddin Karimi, PT., M.Sc, Ph.D candidate.
Department of Physical Therapy,
Tarbiat Modares University, Tehran, Iran.
Faculty member at University of Social Welfare
& Rehabilitation Sciences.
E-mail: karimi@uswr.ac.ir
* Received for Publication: April 17, 2008
* Revision Received: April 21, 2008
* 2nd Revision Received: April 28, 2008
* Final Revision accepted: May 10, 2008
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