The reliability and concurrent validity of goniometric and visual estimation in participants with unilateral shoulder pain.

Introduction: The Constant-Murley Score (CMS) uses universal goniometry (UG), and the Shoulder Functional Reach Score (SFRS) uses visual estimation (VE). The CMS has validity challenges, and the SFRS has been critiqued for using VE. This study sought to determine the reliability and concurrent validity of VE when compared to the UG for shoulder flexion and abduction.