Shoulder rotation ROM and strength measurements
Although determining of range of motion (ROM) and strength is a basic component of the clinical examination of the shoulder complex, no comprehensive reliability study assessing different procedures for measuring shoulder internal and external rotation ROM and strength is available yet.
This study aimed to determine both the intra- and inter-rater reliability and the minimal detectable change for goniometric, inclinometric and hand-held dynamometry measurements of ROM and strength into internal and external rotation. In a cross-sectional design, 30 asymptomatic patients underwent supine and sitting assessment of shoulder rotational ROM using a goniometer and an inclinometer, and sitting, supine and prone assessment of strength into internal and external rotation using a hand-held dynamometer.
Good to excellent intra- and interrater reliability was found for all measurement procedures. For ROM measurements, the lowest consistency was found for internal rotation ROM (especially when measured in 90 degrees of flexion); when assessing strength, the prone position should be avoided since it lacks correlation with the other testing positions. Based on these results, recommendations include measurements in supine position – for stabilization purposes –, and using more than only one procedure.
> From: Cools et al., J Shoulder Elbow Surg 23 (2014) 1454-1461. All rights reserved to Journal of Shoulder and Elbow Surgery Board of Trustees. Click here for the Pubmed summary.