Bakody Sign, also called the Shoulder Abduction Relief Test, assesses whether placing the symptomatic arm on top of the head reduces familiar arm symptoms. Unlike many orthopaedic tests, a positive finding is usually symptom relief rather than symptom reproduction. Relief of arm pain, paraesthesia or radiating symptoms may support suspicion of cervical radicular symptom behaviour when it matches the history and other findings. The test does not confirm cervical radiculopathy or nerve root compression on its own and should be interpreted with neurological screening, Spurling’s Test, cervical distraction, cervical ROM and upper-limb neurodynamic testing.

Introduction

Clients with neck-related arm symptoms may sometimes find relief by placing the hand of the symptomatic arm on top of the head. This observation is known as Bakody Sign or the Shoulder Abduction Relief Test. The position may reduce symptoms by changing neural tension, altering cervical foraminal loading or modifying the mechanical relationship between the neck, shoulder girdle and upper limb.

Bakody Sign is different from most provocation tests. A positive response is a reduction or relief of familiar arm symptoms, not symptom reproduction. This makes clear symptom recording essential. The professional should document symptom intensity before and after the position, symptom location, symptom quality, time held and whether any shoulder pain or vascular symptoms limited the test.

Bakody Sign can support cervical radicular symptom reasoning, but it should never be used alone to diagnose cervical radiculopathy. Arm symptoms can also be influenced by shoulder pathology, thoracic outlet involvement, peripheral nerve sensitivity, myofascial pain or other contributors.

Quick Summary

Test name: Bakody Sign
Also known as: Shoulder Abduction Relief Test, Bakody Test
Body region: Cervical spine, shoulder girdle and upper limb
Purpose: Assess whether shoulder abduction relieves familiar arm symptoms
Commonly associated with: Cervical radicular symptom assessment
Positive finding: Reduction or relief of familiar arm symptoms when the hand is placed on the head
Negative finding: No relief, worsening or no meaningful symptom change
Best used with: Spurling’s Test, Cervical Distraction Test, neurological screen, cervical ROM, upper-limb neurodynamic testing and symptom mapping
Key limitation: Bakody Sign does not confirm cervical radiculopathy on its own.

What Is Bakody Sign?

Bakody Sign is performed by asking the client to place the hand of the symptomatic arm on top of the head. The shoulder is abducted and externally rotated, the elbow is flexed, and the client holds the position while symptoms are monitored.

A positive sign is usually reduction or relief of familiar radiating arm symptoms. The test is sometimes observed spontaneously when a client naturally rests the hand on the head to reduce symptoms. This observation should still be recorded carefully rather than assumed to be diagnostic.

Why It Is Used

Bakody Sign is used when cervical radicular symptoms are being considered as part of the assessment. It may be relevant when a client reports neck pain with arm pain, paraesthesia, numbness or symptoms that appear to follow a nerve-root distribution.

The test may help determine whether upper-limb symptoms are influenced by shoulder abduction and cervical/upper-limb positioning. It can support assessment reasoning when paired with neurological findings, Spurling’s Test, cervical distraction and upper-limb neurodynamic testing.

What It Assesses

Bakody Sign assesses:

• Symptom response to shoulder abduction
• Reduction or relief of familiar arm symptoms
• Possible cervical radicular symptom behaviour
• Change in paraesthesia, numbness or radiating pain
• Influence of upper-limb position on symptoms
• Shoulder tolerance to abducted and externally rotated position
• Whether symptoms return when the arm is lowered

It does not directly assess a nerve root, confirm compression or identify the exact anatomical cause of symptoms.

Who It Is Useful For

Bakody Sign may be useful for clients with neck pain and arm symptoms, radiating pain, paraesthesia, numbness or symptoms that change with neck or arm position.

It may be less useful or inappropriate when the client cannot safely raise the arm, has acute shoulder injury, severe shoulder pain, significant vascular symptoms, worsening neurological signs, dizziness or symptoms requiring urgent medical review.

When to Use This Test

Use Bakody Sign when:

• The client has neck-related arm symptoms
• Symptoms are present at baseline or can be clearly monitored
• The client can safely place the hand on the head
• You want to observe whether shoulder abduction relieves symptoms
• The result will be interpreted with cervical and neurological findings
• You can record symptom change before and after the position

When Not to Use or When to Be Cautious

Use caution or avoid the test when the client has acute shoulder injury, severe shoulder pain, recent shoulder surgery, unstable shoulder symptoms, dizziness, vascular symptoms, significant upper-limb swelling, severe neurological deficit, progressive weakness, acute trauma or inability to raise the arm safely.

Stop the test if shoulder pain increases, arm symptoms worsen sharply, neurological symptoms increase, dizziness occurs, vascular symptoms appear, or the client cannot tolerate the position.

Equipment Required

Bakody Sign requires minimal equipment:

• Chair or safe standing space
• Pain and symptom rating scale
• Symptom-location recording method
• Measurz app for structured documentation
• Optional video for posture and arm position review
• Optional MAT notes for cervical, shoulder and neurological findings

Within Measurz, Bakody Sign can be recorded alongside Spurling’s Test, Cervical Distraction Test, cervical ROM, upper-limb neurodynamic testing, neurological screening, grip strength and shoulder ROM. Measurz helps document symptom change, position, time held, comparison side and related findings.

Step-by-Step Protocol / Practice

Setup

Explain that the test checks whether placing the hand on the head changes arm symptoms. Clarify baseline symptoms before testing, including pain score, symptom location, paraesthesia, numbness or radiating symptoms.

Client position

The client sits or stands upright. Sitting is often preferred if symptoms are irritable or balance is a concern.

Examiner/professional position

Stand beside or in front of the client so the neck, shoulder, arm and symptom response can be observed.

Hand placement

No examiner hand placement is usually required. If the client needs support to raise the arm, assist gently and document that support was provided.

Stabilisation

Do not force the shoulder or neck. The client should move comfortably into the test position.

Movement or force direction

Ask the client to place the hand of the symptomatic arm on top of the head. The shoulder moves into abduction and external rotation, and the elbow flexes. The position may be held for 30–60 seconds if tolerated, or long enough to observe symptom change.

The client then lowers the arm, and symptoms are reassessed.

Instructions

Ask:

“Place the hand of your symptomatic arm on top of your head.”
“Tell me whether your arm symptoms reduce, increase or stay the same.”
“Tell me what changes in pain, tingling, numbness or heaviness.”
“Let me know if your shoulder becomes painful or the position feels unsafe.”

Positive finding

A positive Bakody Sign is reduction or relief of familiar arm symptoms in the shoulder-abduction position.

Negative finding

A negative finding is no relief, worsening or no meaningful symptom change.

Stopping criteria

Stop if shoulder pain increases significantly, neurological symptoms worsen, vascular symptoms appear, dizziness occurs, the client cannot tolerate the position or the client asks to stop.

Safety notes

Do not force shoulder abduction. Remember that a positive finding is symptom relief, not symptom reproduction.

Positive and Negative Test Interpretation

A positive Bakody Sign may support suspicion of cervical radicular symptom behaviour when shoulder abduction reduces familiar arm pain, paraesthesia or radiating symptoms. It is more meaningful when it matches the client’s history and is supported by neurological findings, Spurling’s Test, cervical distraction or upper-limb neurodynamic testing.

A positive test does not confirm cervical radiculopathy, nerve root compression or a specific cervical level. Relief may be influenced by changes in neural tension, shoulder girdle unloading, postural change or symptom sensitivity.

A negative test means the position did not reduce symptoms, or symptoms worsened. This does not exclude cervical radicular involvement. Some clients with cervical radicular symptoms do not improve in this position, and shoulder pain, thoracic outlet involvement or peripheral nerve sensitivity may alter the response.

Sensitivity, Specificity and Diagnostic Accuracy

Diagnostic accuracy evidence for Bakody Sign is limited and varies by study, population and reference standard. It should not be used as a stand-alone diagnostic test.

Rubinstein et al. (2007) reviewed provocative neck tests for cervical radiculopathy and found that available studies had methodological limitations, variable test procedures and imperfect reference standards. The shoulder abduction test was generally described as having low-to-moderate sensitivity and moderate-to-high specificity, but evidence quality limited strong conclusions.

Wainner et al. (2003) investigated clinical examination findings for cervical radiculopathy and reported that clusters of findings were more useful than isolated tests. Bakody/shoulder abduction relief findings should therefore be interpreted alongside other tests rather than used alone.

In practical terms, a positive Bakody Sign may increase suspicion when it fits the clinical pattern, but a negative sign does not exclude cervical radicular symptoms.

Reliability and Validity

Reliability depends on consistent baseline symptoms, clear positioning, test duration and symptom-change criteria. If symptoms are not present at the start of testing, interpretation may be limited because there is little to relieve.

Validity is strongest when the test reduces familiar arm symptoms that appear cervical or radicular in nature and when the result aligns with neurological findings or other cervical tests. Validity is weaker when symptoms are vague, shoulder pain limits the position or symptom change is minimal.

Common Errors and Limitations

Common errors include:

• Looking for symptom reproduction instead of relief
• Testing when baseline symptoms are absent
• Forcing shoulder abduction
• Ignoring shoulder pain as a limiting factor
• Not recording symptom intensity before and after
• Assuming a positive sign confirms cervical radiculopathy
• Failing to complete a neurological screen
• Ignoring thoracic outlet or peripheral nerve contributors
• Not checking whether symptoms return when the arm is lowered

Limitations include shoulder mobility restrictions, variable symptom behaviour, overlap with thoracic outlet symptoms, overlap with peripheral nerve sensitivity and limited stand-alone diagnostic accuracy evidence.

Practical Applications

Bakody Sign is useful when a client reports arm symptoms that change with shoulder or cervical position. It can help professionals document whether shoulder abduction reduces symptoms and whether that response fits the broader cervical radicular pattern.

The test is also useful for education because it reinforces that not all positive tests reproduce pain. Some signs are meaningful because they relieve symptoms. Recording the direction and magnitude of symptom change is more useful than simply writing “positive”.

How to Record This in Measurz

In Measurz, record:

• Test name: Bakody Sign or Shoulder Abduction Relief Test
• Side tested
• Starting symptoms
• Pain or symptom score before the test
• Symptom location
• Symptom quality: pain, tingling, numbness, heaviness or paraesthesia
• Arm position
• Neck position
• Time held
• Symptom score during and after the position
• Whether symptoms reduced, resolved, worsened or stayed the same
• Whether symptoms returned when the arm lowered
• Shoulder pain or mobility limitation
• Result: positive, negative, unclear or unable to test
• Neurological symptoms
• Confidence in result
• Related Spurling’s, Cervical Distraction, cervical ROM, neurological screen and upper-limb neurodynamic findings
• Reason for stopping if relevant

Recording these details improves repeatability, communication, symptom tracking, client education, assessment reasoning and reporting quality.

Related Tests / Internal Links

• Spurling’s Test
• Cervical Distraction Test
• Upper Limb Tension Test
• Cervical ROM Assessment
• Cervical Rotation Lateral Flexion Test
• Cervical Flexion Rotation Test
• Adson’s Test
• Roos Stress Test
• Shoulder ROM Assessment
• Grip Strength Test
• Neurological Screen

FAQs

What is Bakody Sign used for?

Bakody Sign is used to assess whether placing the symptomatic arm on top of the head reduces familiar arm symptoms.

What is a positive Bakody Sign?

A positive finding is reduction or relief of familiar arm pain, paraesthesia, numbness or radiating symptoms when the hand rests on the head.

Is Bakody Sign a pain provocation test?

No. It is usually a symptom-relief sign. Relief, not reproduction, is the key positive response.

Does Bakody Sign diagnose cervical radiculopathy?

No. It may support cervical radicular symptom reasoning, but it does not confirm cervical radiculopathy on its own.

What is a negative Bakody Sign?

A negative result means symptoms do not improve, worsen or show no meaningful change in the test position.

What if the shoulder hurts during the test?

Shoulder pain should be recorded because it may limit test validity and may require shoulder assessment.

What should be recorded in Measurz?

Record side, symptom intensity before and after, arm position, neck position, time held, symptom change, shoulder symptoms and related cervical findings.

Key Takeaways

Bakody Sign is a shoulder-abduction symptom-relief sign.
A positive result is reduction of familiar arm symptoms.
The test does not confirm cervical radiculopathy on its own.
It is most useful when interpreted with neurological screening and other cervical tests.
Measurz should capture symptom change before, during and after the position.

References

Rubinstein, S. M., Pool, J. J. M., van Tulder, M. W., Riphagen, I. I., & de Vet, H. C. W. (2007). A systematic review of the diagnostic accuracy of provocative tests of the neck for diagnosing cervical radiculopathy. European Spine Journal, 16(3), 307–319. https://doi.org/10.1007/s00586-006-0225-6

Sleijser-Koehorst, M. L. S., Coppieters, M. W., Epping, R., Rooker, S., Verhagen, A. P., & Scholten-Peeters, G. G. M. (2021). Diagnostic accuracy of patient interview items and clinical tests for cervical radiculopathy. Physiotherapy, 111, 74–82. https://doi.org/10.1016/j.physio.2020.07.007

Wainner, R. S., Fritz, J. M., Irrgang, J. J., Boninger, M. L., Delitto, A., & Allison, S. (2003). Reliability and diagnostic accuracy of the clinical examination and patient self-report measures for cervical radiculopathy. Spine, 28(1), 52–62. https://doi.org/10.1097/00007632-200301010-00014

Yousif, M. S., Occhipinti, G., Bianchini, F., Feller, D., Schmid, A. B., & Mourad, F. (2025). Neurological examination for cervical radiculopathy: A scoping review. BMC Musculoskeletal Disorders, 26, 334. https://doi.org/10.1186/s12891-025-08560-9