Correlates of perceived ankle instability in healthy individuals aged 8-101 years

Publication date: Available online 22 September 2016
Source:Archives of Physical Medicine and Rehabilitation
Author(s): Jennifer Baldwin, Marnee McKay, Claire Hiller, Elizabeth J. Nightingale, Niamh Moloney, Joshua Burns
ObjectiveTo provide reference data for the Cumberland Ankle Instability Tool (CAIT) and investigate the prevalence and correlates of perceived ankle instability in a large healthy population.DesignCross-sectional observational study.SettingUniversity laboratory.ParticipantsSelf-reported healthy individuals (n=900; age range 8-101 years, stratified by age and gender) from the 1000 Norms Project.InterventionsNot applicable.Main Outcome MeasuresParticipants completed the CAIT (18-101 years) or CAIT-Youth (8-17 years). Socio-demographic factors, anthropometric measures, hypermobility, foot alignment, toes strength, lower limb alignment and ankle strength and range of motion were analysed.ResultsAmong 900 individuals aged 8-101 years, 23% (n=203) had bilateral and 8% (n=73) had unilateral perceived ankle instability. The odds of bilateral ankle instability were 2.6 (95%CI 1.7-3.8, p<.001) times higher for females; decreased by 2% (95%CI 1-3%, p=.001) for each year of increasing age, increased by 3% (95%CI 0-6%, p=.041) for each degree of ankle dorsiflexion tightness, and increased by 4% (95%CI 2-6%, p<.001) for each centimetre of increased waist circumference.ConclusionsPerceived ankle instability was common with almost a quarter of the sample reporting bilateral instability. Females, younger age, increased abdominal adiposity and decreased ankle dorsiflexion range of motion were independently associated with perceived ankle instability.



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