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journal article Mar 01, 2007

Contributing Factors to Chronic Ankle Instability

Tricia J. Hubbard Lauren C. Kramer Craig R. Denegar Jay Hertel
Foot & Ankle International Vol. 28 No. 3 pp. 343-354 · SAGE Publications
View at Publisher Save 10.3113/fai.2007.0343
Abstract
Background: The development of repetitive ankle sprains and persistent symptoms after initial ankle sprain has been termed chronic ankle instability (CAI). There is no clear indication of which measures are most important in discriminating between individuals with and without CAI. Methods: Thirty subjects with unilateral CAI and controls had measures of ankle laxity and hypomobility, static and dynamic balance, ankle and hip strength, lower extremity alignments, and flexibility taken on both limbs. Results: Based on comparisons of CAI ankles and side-matched limbs in controls, the measures significantly predictive of CAI were increased inversion laxity (r 2 change = 0.203), increased anterior laxity (r 2 change = 0.11), more missed balance trials (r 2 change = 0.094), and lower plantarflexion to dorsiflexion peak torque (r 2 change = 0.052). Symmetry indices comparing the side-to-side differences of each measure also were calculated for each dependent variable and compared between groups. The measures significantly predictive of CAI were decreased anterior reach (r 2 change = 0.185), decreased plantarflexion peak torque (r 2 change = 0.099), decreased posterior medial reach (r 2 change = 0.094), and increased inversion laxity (r 2 change = 0.041). Conclusions: The results of this study elucidate the specific measures that best discriminate between individuals with and without CAI. Both mechanical (anterior and inversion laxity) and functional (strength, dynamic balance) insufficiencies significantly contribute to the etiology of CAI. Prevention of CAI may be possible with proper initial management of the acute injury with rehabilitation aimed at those factors that best discriminate between individuals with and without CAI.
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Cited By
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Diagnosis, treatment and prevention of ankle sprains: update of an evidence-based clinical guideline

Gwendolyn Vuurberg, Alexander Hoorntje · 2018

British Journal of Sports Medicine
Selection Criteria for Patients With Chronic Ankle Instability in Controlled Research: A Position Statement of the International Ankle Consortium

Phillip A. Gribble, Eamonn Delahunt · 2013

Journal of Orthopaedic & Sports...
Metrics
201
Citations
45
References
Details
Published
Mar 01, 2007
Vol/Issue
28(3)
Pages
343-354
License
View
Authors
T
Tricia J. Hubbard

Charlotte, NC; Kinesiology, University of North Carolina, Charlotte, NC

L
Lauren C. Kramer

Charlotte, NC; Department of Kinesiology, Pennsylvania State University, University Park, PA

C
Craig R. Denegar

Charlotte, NC; Department of Kinesiology, Pennsylvania State University, University Park, PA

J
Jay Hertel

Charlotte, NC; Kinesiology, University of Virginia, Charlottesville, VA

Cite This Article
Tricia J. Hubbard, Lauren C. Kramer, Craig R. Denegar, et al. (2007). Contributing Factors to Chronic Ankle Instability. Foot & Ankle International, 28(3), 343-354. https://doi.org/10.3113/fai.2007.0343
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