Shoulder Internal Rotation at 90 deg Abduction

Purpose

Screen for Shoulder Internal Rotation at 90 deg Abduction findings.

Execution

1. 1Lie supine with shoulder abducted to 90 deg
2. 2Flex the elbow to 90 deg and stabilize the scapula
3. 3Rotate the forearm toward the table into internal rotation
4. 4Stop before the shoulder lifts
5. 5Compare sides

Key Observations

• Normal >70 deg
• Compare bilaterally
• Total arc (ER + IR) >180 deg

Views

• supine

Protocol

1. 1Observe from: supine.
2. 2Standardize start position and instructions.
3. 3Perform 2-3 trials per side when applicable.
4. 4Record key observations and any positive indicators.
5. 5Compare left vs right when applicable.

Reference

Joint Range of Motion and Muscle Length Testing