Empty Can (Jobe) Test

Special Test

Assesses supraspinatus integrity.

Purpose

Screen for Empty Can findings.

Execution

1. Stand with arms elevated in the scapular plane to 90 deg
2. Internally rotate so thumbs point down
3. Apply downward pressure at the distal forearm
4. Ask the client to resist the pressure
5. Note pain or weakness compared to the other side

Key Observations

• Arms at 90 deg abduction, 30 deg horizontal, thumbs down
• Weakness or pain indicates a positive test

Views

• frontal

Protocol

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

Reference

Frank Jobe