Charlotte Beaudart1, Christophe Demoulin2, Klejdi Mehmeti3, Stephen Bornheim4, Julien Van Beveren5, Jean-François Kaux6. 1. Department of Physical Medicine and Rehabilitation, Liege University Hospital Center, University of Liège, Liège, Belgium. Electronic address: c.beaudart@uliege.be. 2. Department of Physical Medicine and Rehabilitation, Liege University Hospital Center, University of Liège, Liège, Belgium; Department of Rehabilitation and Sports Sciences, University of Liège, Liège, Belgium; UCLouvain, Faculty of Motor Sciences at Université Catholique de Louvain-La-Neuve, Louvain, Belgium. 3. Department of Rehabilitation and Sports Sciences, University of Liège, Liège, Belgium. 4. Department of Physical Medicine and Rehabilitation, Liege University Hospital Center, University of Liège, Liège, Belgium; Department of Rehabilitation and Sports Sciences, University of Liège, Liège, Belgium. 5. HEL (Haute Ecole de la ville de Liège), Liège, Belgium. 6. Department of Physical Medicine and Rehabilitation, Liege University Hospital Center, University of Liège, Liège, Belgium; Department of Rehabilitation and Sports Sciences, University of Liège, Liège, Belgium; Department of Physical Medicine and Sports Traumatology, SportS(2), FIFA Medical Centre of Excellence, University and University Hospital of Liège, Liège, Belgium.
Abstract
PURPOSE: To translate and validate the Identification of Functional Ankle Instability (IdFAI) into French. METHODS: The IdFAI was translated according to international recommendations. Discriminative power, floor and ceiling effects, construct validity (including confirmatory factorial analysis (CFA)), internal consistency and test-retest reliability were measured. Standard Error of Measurement (SEM) and Smallest Detectable Change (SDC) were also calculated. RESULTS: 160 participants were included. The IdFAI-F showed a very good test-retest reliability (ICC = 0.95). The SEM was 1.37 and the MDC was 3.79. The internal consistency was moderate (Cronbach's alpha coefficient = 0.68). The correlation between the IdFAI and the Cumberland Ankle Instability Tool (CAIT) was high (r = -0.75, p < 0.001). No floor, nor ceiling effects were observed. The CFA analyses did not confirm the factor structure proposed by the authors of the original English version. CONCLUSIONS: The IdFAI-F is a valid and reliable tool to accurately identify and measure chronic ankle instability in research and clinical settings for French-speaking individuals.
PURPOSE: To translate and validate the Identification of Functional Ankle Instability (IdFAI) into French. METHODS: The IdFAI was translated according to international recommendations. Discriminative power, floor and ceiling effects, construct validity (including confirmatory factorial analysis (CFA)), internal consistency and test-retest reliability were measured. Standard Error of Measurement (SEM) and Smallest Detectable Change (SDC) were also calculated. RESULTS: 160 participants were included. The IdFAI-F showed a very good test-retest reliability (ICC = 0.95). The SEM was 1.37 and the MDC was 3.79. The internal consistency was moderate (Cronbach's alpha coefficient = 0.68). The correlation between the IdFAI and the Cumberland Ankle Instability Tool (CAIT) was high (r = -0.75, p < 0.001). No floor, nor ceiling effects were observed. The CFA analyses did not confirm the factor structure proposed by the authors of the original English version. CONCLUSIONS: The IdFAI-F is a valid and reliable tool to accurately identify and measure chronic ankle instability in research and clinical settings for French-speaking individuals.