Understanding the Adson Test: A Key Diagnostic Tool at Physio360.
- PHYSIO 360
- Apr 30
- 3 min read

INTRODUCTION;
At Physio360, our focus is not just on treating pain but on identifying its root cause with precision and care. One of the clinical tests often used in diagnosing neurovascular compression syndromes like Thoracic Outlet Syndrome (TOS) is the Adson Test. While the name might sound clinical, the purpose is simple—identifying whether the nerves or blood vessels in your neck and shoulder region are being compressed.
What Is the Adson Test?
The Adson Test is a manual clinical test used to evaluate the presence of Thoracic Outlet Syndrome, a condition where the nerves and blood vessels supplying the arm become compressed in the space between the collarbone and first rib. This can lead to symptoms such as:
Numbness or tingling in the arm,
Shoulder and neck pain,
Weak grip strength,
Fatigue or heaviness in the arm during physical activity.
At Physio360, our expert physiotherapists are trained to perform this test safely and effectively to help pinpoint the cause of your symptoms.

How Is the Adson Test Performed?
The Adson Test involves a few simple steps:
You will be asked to sit or stand comfortably.
The therapist at Physio360 will gently palpate your radial pulse on the affected arm.
You’ll then be asked to:
Extend your neck,
Rotate your head toward the side being tested,
Take a deep breath and hold it.
The therapist observes the strength of the pulse and monitors for symptoms like pain, tingling, or numbness in your arm.
What Does a Positive Adson Test Indicate?
A positive Adson Test occurs when there's a diminished or absent radial pulse and/or reproduction of symptoms like numbness or tingling during the manoeuvre. This suggests compression of the subclavian artery or brachial plexus, typically due to tight scalene muscles or cervical rib abnormalities.
However, the Adson Test is not definitive on its own. At Physio360, we combine this test with other assessments and clinical reasoning to reach an accurate diagnosis.
Why Choose Physio360 for Thoracic Outlet Syndrome?
At Physio360, we believe in a comprehensive and evidence-based approach to physiotherapy. If you’re experiencing unexplained arm weakness, neck stiffness, or pain during gym or work activities, it might not just be a muscle strain—it could be Thoracic Outlet Syndrome, and early diagnosis is key.
Our therapists use manual therapy, postural correction, neurodynamic techniques, and strengthening exercises to treat conditions like TOS. The Adson Test is just one of the many tools we use to ensure your recovery is targeted, effective, and long-lasting.
Who Can Benefit from the Adson Test?
This test is commonly indicated for individuals who:
Perform repetitive overhead activities (e.g., athletes, gym trainers, painters),
Suffer from poor posture or forward head positioning,
Experience neck trauma or whiplash,
Report unusual fatigue or heaviness in the arms with activity.
If this sounds like you, it’s time to consult Physio360 for a detailed evaluation.

Final Thoughts.
The Adson Test, though simple, plays a vital role in diagnosing complex conditions like Thoracic Outlet Syndrome. At Physio360, our trained physiotherapists use it as part of a holistic evaluation process to ensure you get the right treatment at the right time.
Whether you’re a fitness professional, desk worker, or athlete, don’t ignore that nagging shoulder or arm discomfort. Let Physio360 help you uncover the cause and get you back to pain-free living with our best-in-class physiotherapy services in Chennai.
REFERENCE AND RESEARCH ARTICLE ;
1.Diagnosing Thoracic Outlet Syndrome: Current Approaches and Future Directions. Directionshttps://pmc.ncbi.nlm.nih.gov/articles/PMC5872004/.
2.Doppler Adson’s Test: Predictor of Outcome of Surgery in Non-Specific Thoracic Outlet Syndromehttps://www.researchgate.net/publication/7298373_Doppler_Adson''' ''s_Test_Predictor_of_Outcome_of_Surgery_in_Non-Specific_Thoracic_Outlet_Syndrome.
Visit Physio360 today – where diagnosis meets expert care.
📍 Multiple centers across Chennai📞 Call now to book your assessment🌐 www.physio360.in (if applicable)
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