What is an Empty Can Test?
Rotator cuff injuries affect the muscles and tendons that make up the shoulder joint. These injuries are more common in middle-aged adults, though any age can suffer from them. Common causes of rotator cuff injuries include repetitive overhead motions, such as throwing or lifting objects, a sudden fall onto an outstretched arm, or a direct blow to the shoulder.
Medical professionals often use the to diagnose a rotator cuff injury. Also known as the Jobe's Test, this assessment tool can provide insight into the strength of the patient's shoulder. It also helps clinicians identify which muscles and tendons may be affected by the injury and how severe it is.
In the Empty Can Test, the patient is asked to hold their arm out in front of them, with the elbow slightly bent and the thumb pointing up. Then, they are asked to turn their wrist so the palm faces outwards. From this position, they are asked to slowly raise the arm, keeping it in line with the shoulder. The clinician looks for any signs of pain or weakness during the test and will note any discrepancies in strength.











