Inter–rater reliability was poor for manual tests of ankle stability. Reliability may be improved by using a grading scale with fewer intervals. The cumberland ankle instability tool (CAIT) scores and manual tests correlated poorly, potentially reflecting the variety of conditions leading to ankle instability.
One ankle from each of 60 participants was assessed using four different manual tests (anterior drawer in supine and crook lying, talar tilt, inversion tilt).
Three different raters, varying in experience, tested each participant.
The CAIT questionnaire was also administered.
The study received ethics approval from the University of Sydney Human Research Ethics Committee.
Intraclass correlation coefficients (ICC), standard error of the mean (SEM) and percent close agreement (PCA) were used to determine reliability of the four tests.
Pearson's correlation coefficients were used to determine relationships between the manual tests and CAIT scores.
Inter–rater reliability for the four manual tests was poor regardless of therapist's experience (ICC[1,1] –0.12 to 0.33; SEM 0.93–1.69).
Correlations between the CAIT and manual tests were also low varying between r = –0.12 and –0.42.
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