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The effect of genu varum deformity on balance control following postural perturbation in adolescent girls
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Maryam Panah-abadi1   , Azar Aghayari1 , Fatemeh Salari Esker , Mehrdad Anbarian2 |
1- Payame Noor University, Tehran,
2- Bu Ali Sina University , m_anbarian@yahoo.com |
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Abstract: (12154 Views) |
| ABSTRACT
Background and Aim: Despite the fact that balances has often been considered as a measure of lower extremity function, the effect of lower extremity malalignment on balance performance has received little attention. The aim of the present study was to examine postural control following a sudden external perturbation in adolescent girls with genu varum of the knees in comparison to age matched healthy controls.
Materials and methods: This comparative and interventional study included eight adolescent girls with genu varum (age: 13. 5± 1.4 years) and eight age-matched healthy controls (age: 13.8 ± 1.3). The subjects underwent unexpected forward, backward and medio-lateral perturbations triggered by a weight equivalent to 10% of the body weight, of every subject while standing on a foot pressure system mounted on a movable plate. The displacement of the center of pressure (COP) of the feet was measured. Independent t-test was used for statistical analysis. p≤0.05 was considered significant.
Results: Subjects with genu varum of the knees showed a significantly greater COP displacement after perturbation in comparison to the control group (p=0.039).
Conclusion: Our findings revealed that postural control following balance perturbations is weaker in subjects with genu varum deformity than in control group. Consequently, abnormal lower limb alignment is a risk factor which can influence postural control in response to a balance perturbation.
Conflict of Interest: Nil
Received: Jan 17, 2012 Accepted: Dec 20, 2012 |
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| Keywords: Balance perturbation, Genu varum, Adolescent girls, Postural control. |
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Full-Text [PDF 556 kb]
(2948 Downloads)
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Type of Study: Original Research |
Subject:
General
Received: 2013/06/18 | Published: 2013/06/15
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