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Arthritis Care Res (Hoboken). 2014 May;66(5):709-16. doi: 10.1002/acr.22193.

Impairment of dynamic single-leg balance performance in individuals with hip chondropathy.

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  • 1The University of Queensland, Brisbane, Queensland, Australia.

Abstract

OBJECTIVE:

Impaired balance control has been reported in the elderly with hip osteoarthritis, yet this relationship has not been explored in young adults with hip chondropathy. This study aimed to determine whether people with hip chondropathy demonstrated impaired balance ability during a dynamic single-leg squat with eyes open (SquatEO) and a single-leg standing task with eyes closed (StandEC) and whether hip range of motion (ROM) and hip muscle strength were correlated with balance measures in adults with hip chondropathy.

METHODS:

Sixty-three adults with hip chondropathy and 60 controls performed 2 tasks: SquatEO and StandEC while standing on a Nintendo Wii Balance Board. Center of pressure (COP) movement in mediolateral and anteroposterior directions was extracted. Hip ROM and muscle strength were measured with an inclinometer and dynamometer. Data were analyzed using an analysis of covariance and stepwise multiple regression model.

RESULTS:

During SquatEO, greater COP mediolateral range (P = 0.023) and anteroposterior SD (P = 0.043) were observed in those with hip chondropathy compared to controls. No significant between-group differences were observed for StandEC. Hip external rotation ROM was significantly associated with mediolateral range during SquatEO.

CONCLUSION:

Dynamic single-leg balance squat performance is reduced in people with hip chondropathy compared to healthy adults, but static single-leg standing balance is not. This may be reflective of reduced control of dynamic movements. Those with greater hip joint external rotation ROM appear to have worse single-leg squat balance performance. Further investigation into balance deficits associated with hip disease is necessary to establish early identification strategies and a tailored approach to rehabilitation.

Copyright © 2014 by the American College of Rheumatology.

PMID:
24115764
[PubMed - indexed for MEDLINE]
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