Understanding the Empty Can Test: How Physio360 Helps Diagnose Shoulder Problems Early.
- PHYSIO 360

- Apr 26
- 3 min read
Updated: May 2

INTRODUCTION;
Shoulder pain is one of the most common complaints we see at Physio360, and diagnosing the exact cause quickly is key to effective treatment. One of the most reliable clinical tools for identifying shoulder issues, especially supraspinatus muscle tears, is the Empty Can Test. At Physio360, we regularly use this simple yet powerful assessment to guide the best rehabilitation plans for our patients.
What is the Empty Can Test?
The Empty Can Test, also known as the Supraspinatus Strength Test, is used to evaluate the integrity of the supraspinatus tendon, a crucial part of the rotator cuff. The supraspinatus muscle helps lift the arm and stabilise the shoulder joint. Injury or weakness in this muscle can significantly affect your ability to perform everyday activities like lifting, reaching, or carrying objects.
At Physio360, we use the Empty Can Test as part of our thorough shoulder evaluation process to detect rotator cuff tears, tendinopathy, or impingement syndromes.
How is the Empty Can Test Performed?
During your visit to Physio360, here’s how the test is typically conducted:
You will be asked to raise your arms to shoulder height (90 degrees) in the scapular plane (about 30–45 degrees forward from the body).
Then, you rotate your thumbs downward, as if you are emptying a can — hence the name Empty Can Test.
The therapist applies gentle downward pressure on your arms while you try to resist.
Pain, weakness, or inability to resist the pressure suggests a positive test result, indicating possible damage to the supraspinatus muscle or tendon.
Our skilled physiotherapists at Physio360 perform the test carefully and combine it with other diagnostic methods to ensure accuracy.

What Does a Positive Empty Can Test Mean?
A positive Empty Can Test result can point to:
Supraspinatus tear (partial or full thickness)
Tendinitis or tendinopathy of the supraspinatus
Rotator cuff impingement syndrome
If you have been experiencing persistent shoulder pain, weakness, or difficulty lifting objects, an early evaluation at Physio360 can make a big difference in your recovery process.
Why Choose Physio360 for Shoulder Pain Diagnosis and Treatment?
At Physio360, we don’t just stop at diagnosis — we provide complete, personalised care to help you recover faster and stronger. Here's how we stand out:
Detailed shoulder assessment, including tests like the Empty Can Test
Customised rehabilitation programs
Pain management through manual therapy, electrotherapy, and advanced techniques
Focused strengthening exercises for the rotator cuff
Posture correction and ergonomic advice to prevent future injuries
We believe in early detection, targeted therapy, and long-term solutions. Our expert team ensures that your treatment plan addresses not just the symptoms but the root cause of your shoulder problems.
When Should You Visit Physio360?
You should consider visiting Physio360 if you experience:
Shoulder pain that worsens with lifting
Weakness when lifting the arm to the side
Difficulty sleeping on the affected shoulder
Reduced range of motion
The earlier you seek help, the better your chances of avoiding major injuries or surgery.

Conclusion.
The Empty Can Test is a simple but vital tool that helps detect serious shoulder issues before they worsen. At Physio360, we use it along with a comprehensive evaluation to create a personalised recovery plan that brings lasting results.
Don’t let shoulder pain limit your life. Book an appointment with Physio360 today and start your journey toward pain-free movement.
REFERENCE AND RESEARCH ARTICLE ;
1.Kinesiology of the empty can testhttps://www.researchgate.net/publication/15567535_Kinesiology_of_the_empty_can_test
2.Electromyographic study of rotator cuff muscle activity during full and empty can testshttps://doi.org/10.1016/j.asmart.2014.12.001




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