• Phys Ther Sport · May 2014

    Critical review of self-reported functional ankle instability measures: a follow up.

    • Janet Simon, Matthew Donahue, and Carrie L Docherty.
    • Department of Kinesiology, Indiana University, 1025 E. 7th Street, Bloomington, IN, USA. Electronic address: jesimon@indiana.edu.
    • Phys Ther Sport. 2014 May 1; 15 (2): 97-100.

    ObjectiveDetermine which ankle instability questionnaire predicts subject's ankle instability status based on a minimum accepted criteria for FAI (MC_FAI).DesignCross-sectional study.SettingLarge Midwestern University.ParticipantsCollege aged subjects (n = 1127 19.6 ± 2.1 years) from a university population were recruited for this study. Any volunteer, regardless of ankle injury history was included in the study.Main Outcome MeasuresThe independent variables were the score on three self-report ankle instability questionnaires: Ankle Instability Instrument, Cumberland Ankle Instability Tool, and Identification of Functional Ankle Instability. Subjects completed the questionnaires for their dominant limb during a single testing session. The dependent variable was created based on the previously established MC_FAI. This was established as at least one ankle sprain and at least one episode of giving way. Data were modeled using a chi-square and multinomial logistic regression. 95% confidence intervals were calculated for the resulting odds ratios.ResultsA test of the full model with all three predictors against MC_FAI revealed that only the IdFAI (X² = 457.09, p = .001) had a significant relationship with the outcome variable. The IdFAI had an overall prediction rate of 87.8%.ConclusionsThis analysis illustrates that IdFAI is a good overall option for predicting ankle stability status by self-reported questionnaire.Copyright © 2013 Elsevier Ltd. All rights reserved.

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