Abstract
[Purpose] This study examined the measurement error of malleolar torsion based on the reliability of the measurement method which is an index of tibial torsion. [Methods] We used the intraclass correlation coefficient (ICC) and Bland-Altman analysis to determine the reliability, and examined the measurement error after the confirmation of the systematic error using the standard error of measurement (SEM) and minimal detection change (MDC). [Results] A systematic error was not found for qualified professionals in the intra-rater and the inter-rater reliabilities. The MDC of the measurement error was less than 3 degrees. [Conclusion] The reliability of the measurement confirms the usefulness of the measurement error as a parameter that differs according to measurement experience and skill.
