Reliability and Range of Motion Characteristics of Shoulder Internal Rotation in the Sidelying Position in Collegiate Overhead and Non-Overhead Athletes

First, to compare the reliability of measuring shoulder internal rotation (IR) range of motion (ROM) using three different techniques: sidelying, or sleeper stretch position (SSP), scapular stabilization (SS), and visual inspection (VI). Second, to establish and compare shoulder IR ROM characteristics using SSP, SS, and VI in the dominant and non-dominant arms of overhead and non-overhead athletes.