The purpose of this study was to examine the intratester and intertester reliabilities for clinical goniometric measurements of shoulder passive range of motion (PROM) using two different sizes of universal goniometers. Patients were measured without controlling therapist goniometric placement technique or patient position during measurements. Repeated PROM measurements of shoulder flexion, extension, abduction, shoulder horizontal abduction, horizontal adduction, lateral (external) rotation, and medial (internal) rotation were taken of two groups of 50 subjects each. The intratester intraclass correlation coefficients (ICCs) for all motions ranged from .87 to .99. The ICCs for the intertester reliability of PROM measurements of horizontal abduction, horizontal adduction, extension, and medial rotation ranged from .26 to .55. The intertester ICCs for PROM measurements of flexion, abduction, and lateral rotation ranged from .84 to .90. Goniometric PROM measurements for the shoulder appear to be highly reliable when taken by the same physical therapist, regardless of the size of the goniometer used. The degree of intertester reliability for these measurements appears to be range-of-motion specific.
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