Article

This study investigated the reliability and concurrent validity of active
shoulder elevation in the scapular plane (scaption) using a digital inclinometer
and goniometer. Two investigators used a goniometer and digital inclinometer to
measure scaption on 30 asymptomatic participants in a blinded repeated measures
design. Good reliability was present with intraclass correlation coefficients
(ICCs) for intrarater reliability of goniometry = 0.87, intrarater digital
inclinometry = 0.88, interrater goniometry = 0.92, and interrater digital
inclinometry = 0.89. The minimal detectable change (MDC95) for the interrater
analysis indicated that a change equal to or greater than 8 degrees for
goniometry and 9 degrees for inclinometry is required to be 95% certain that the
change is not due to intertrial variability or measurement error. The concurrent
validity between goniometry and digital inclinometry was excellent with an ICC
value of 0.94 for both raters.
The 95% limits of agreement suggest that the
difference between these two measurement instruments can be expected to vary by
up to +/-11 degrees. The results support the interchangeable use of goniometry
and digital inclinometer for measuring scaption. Clinicians and researchers
should consider the MDC values presented when interpreting change during subsequent measurement sessions.

Langue : ANGLAIS