Abstract
[Purpose] The aim of this study was to assess the reliability of measuring angles of the scapula using a 3D digitizer. [Subjects] Sixteen healthy adult males participated in this study. [Methods] Intra-class and inter-class correlation coefficients (ICC1,2, ICC2,1), 95% confidence intervals (95%CI) , and standard errors of measurement (SEM: °) were calculated for the angles of anterior-posterior tilt, upward-downward rotation and internal-external rotation. [Results] ICC (1,2) was 0.89 ~ 0.71, ICC (2,1) was 0.89 ~ 0.74, 95%CI was 0.96 ~ 0.51, and SEM was 0.47~ 0.13. [Conclusion] Strict definition of bone landmarks is required to further improve the values of ICC. However, SEM was small when measuring scapula angles with the 3D digitizer.
