Arm squeeze test: how to perform and interpret it

Key Takeaways

The arm squeeze test is a bedside orthopaedic test that distinguishes cervical radiculopathy from shoulder pathology by squeezing the middle third of the upper arm.

A positive result means the patient reports pain perceived as coming from the neck, not locally from the arm, indicating likely cervical nerve root involvement.

Published data from Gumina et al. (2013) reports sensitivity of 96% and specificity of 69%, making it a strong rule-out screening tool rather than a confirmatory test.

Pabau’s digital assessment forms and structured patient records help musculoskeletal clinicians document special test findings consistently across every appointment.

Arm squeeze test: what it is and how to perform it correctly

Neck pain and shoulder pain overlap more than most practitioners expect. A patient presents with arm pain and you need to decide quickly: is this a shoulder problem or is the cervical spine the source? The arm squeeze test gives you a fast, equipment-free answer at the bedside.

First described by Gumina et al. (2013, PMC3698345) as a new clinical test to distinguish neck from shoulder pain, the test has since become a standard component of cervical radiculopathy assessment. This guide covers the procedure, how to interpret results, published accuracy data, known limitations, and how it fits into a broader diagnostic test cluster, alongside relevant internal links to help you document and manage musculoskeletal assessments efficiently. For teams building out their physical therapy EMR workflows, getting the documentation layer right for special tests is as important as the clinical technique itself.

Clinical background: cervical radiculopathy vs shoulder pathology

Cervical radiculopathy occurs when a cervical nerve root is compressed or irritated, typically from disc herniation or foraminal stenosis. It produces pain, paraesthesia, or weakness that radiates into the arm, often mimicking primary shoulder conditions such as rotator cuff tears, impingement syndrome, or acromioclavicular pathology.

The clinical problem is straightforward: both conditions cause arm pain, and standard shoulder tests can be positive in patients with referred cervical symptoms. Misattributing a cervical source to the shoulder leads to delayed treatment, unnecessary imaging, and potentially failed shoulder interventions. The arm squeeze test targets this differentiation directly.

Clinicians working across physiotherapy clinic management settings frequently see this presentation. Understanding which test to reach for first saves appointment time and improves diagnostic confidence before referring for imaging.

How to perform the arm squeeze test: step-by-step

The procedure is brief, requires no equipment, and can be performed in any clinical setting. Consistency in hand placement is the key variable that affects result reliability.

Patient positioning

Seat the patient comfortably with the arm relaxed at their side. The shoulder should be in a neutral, unloaded position. Avoid having the patient hold the arm in abduction or elevation before the test, as this could pre-sensitise shoulder tissue and confound the result.

Examiner hand placement and squeeze technique

Place your whole hand around the middle third of the upper arm (the area between the deltoid insertion and the lateral epicondyle). Use a whole-hand grip rather than a fingertip pinch. Apply firm, steady compression sufficient to provoke a pain response, maintaining pressure for two to three seconds.

1. Seat the patient with the tested arm relaxed and hanging at the side
2. Locate the middle third of the upper arm, between the deltoid insertion and the lateral epicondyle
3. Wrap your entire hand around the upper arm at this point
4. Apply firm, steady compressive pressure with the whole hand
5. Hold for two to three seconds and observe the patient’s response
6. Ask the patient: “Where do you feel that pain?” and note whether they report neck or local arm pain

The critical clinical question after squeezing is not “does it hurt?” but “where does the pain feel like it comes from?” Documenting this distinction accurately in your notes is essential. Clinics that use digital assessment forms can preload this question as a structured response field, ensuring consistent capture across practitioners.

How to interpret the arm squeeze test results

Interpretation depends entirely on where the patient perceives the pain, not simply whether pain is present.

A positive arm squeeze test indicates that cervical involvement is likely, but it does not confirm the specific cervical level, the underlying pathology, or rule out a co-existing shoulder problem. It supports, not replaces, full clinical assessment. Recording the exact patient phrasing alongside your clinical interpretation strengthens your documentation, particularly when coordinating care with a referring clinician.

Teams following best practice in safer clinical note-writing will note both the objective finding and the patient’s verbatim description of where the pain originated.

Arm squeeze test sensitivity and specificity: what the data shows

The diagnostic accuracy data comes from the original Gumina et al. (2013) study published in the BMC Musculoskeletal Disorders (PMC3698345). These figures have been consistently cited across clinical reference sources including Physiopedia and Physiotutors.

The 96% sensitivity is the test’s clinical strength. Most patients with genuine cervical radiculopathy will test positive, so a negative arm squeeze test is meaningful: it substantially reduces the probability that cervical nerve root involvement is driving the patient’s symptoms. This makes it a practical first-step screening tool during a musculoskeletal assessment.

The 69% specificity, conversely, means roughly three in ten patients without cervical radiculopathy will still test positive. This is why the arm squeeze test is not sufficient as a standalone confirmatory test. It performs best as part of a structured clinical assessment that includes corroborating findings.

Limitations of the arm squeeze test

Understanding where a test breaks down is as important as knowing when to use it. The arm squeeze test has several clinically relevant limitations practitioners should keep in mind.

• Moderate specificity generates false positives. Patients with local upper arm pathology (biceps tendinopathy, contusions, myofascial pain) may report pain that mimics a positive cervical response.
• Patient communication affects result quality. If a patient cannot clearly describe where the pain originates (due to cognitive impairment, language barriers, or widespread pain sensitisation), interpretation becomes unreliable.
• Contraindications limit applicability. Avoid the test in patients with acute upper arm trauma, suspected fracture, open skin conditions, or acute lymphoedema in the tested limb.
• Examiner pressure variability. The published protocol does not specify a precise compression force, introducing inter-examiner variability that may affect consistency across practitioners.
• Single-study evidence base. The primary accuracy data derives from one study (Gumina et al. 2013). Independent replication studies are limited, which means the figures should be interpreted with appropriate caution in routine practice.

For clinics building structured assessment protocols, flagging these limitations within your documentation templates ensures that clinicians record both the test result and any factors that may affect its reliability. This supports appropriate clinical reasoning and clearer referral letters. See guidance on clinical assessment tools for how documentation frameworks support consistent practice across a team.

Related clinical tests for neck and shoulder pain differential diagnosis

The arm squeeze test is rarely used in isolation. Combining it with complementary cervical tests improves diagnostic accuracy. Each test targets a different mechanism of nerve root compression or pain referral, so using a test cluster reduces the impact of any single test’s limitations.

Notice the complementary profile: the arm squeeze test has high sensitivity (good for ruling out) while Spurling’s and the distraction test have higher specificity (better for ruling in). Using them together in a test cluster is more informative than using any one alone.

The Trust Me ED cervical radiculopathy test guide notes that combining multiple tests substantially improves overall diagnostic confidence, a principle consistent with how evidence-based physiotherapy protocols are structured. For clinicians documenting multi-test assessments, having pre-built assessment templates that capture each test’s result individually, rather than a single free-text field, supports both clinical reasoning and medico-legal clarity.

When clinicians should use the arm squeeze test

The arm squeeze test is not appropriate for every presentation. Knowing when to reach for it, and when to skip it or use it later in the assessment sequence, improves its clinical value.

Physiotherapy clinics that have standardised their assessment workflows, including which tests apply to which presentations, report more consistent clinical reasoning across team members. For practices building these workflows, resources on physiotherapy compliance documentation are a useful reference for structuring both clinical and medico-legal elements of patient records.

How Pabau supports clinical documentation for musculoskeletal assessments

Special test findings only help patients when they are documented clearly, consistently, and in a format that informs the next clinical decision. That is harder than it sounds when clinicians are running back-to-back appointments.

Pabau’s digital assessment forms allow physiotherapy and musculoskeletal clinics to build structured orthopaedic assessment templates, pre-loading fields for each special test result, patient-reported pain location, and clinical interpretation. This means the arm squeeze test result, the Spurling’s finding, and the ULNT response are all captured in discrete, searchable fields rather than buried in free-text notes. Clinics using structured patient records across multiple practitioners benefit from consistent documentation that supports both continuity of care and audit readiness.

For practices where practitioners dictate notes post-assessment, AI-assisted clinical documentation can help convert spoken assessment findings into structured note entries without adding time to the clinical day. Teams setting up a new physiotherapy service can find operational guidance in Pabau’s guide on setting up a physiotherapy clinic.

Consistent documentation of musculoskeletal assessment protocols also strengthens referral letters, supports medico-legal documentation, and helps clinics demonstrate clinical governance standards when required. For practices building out their assessment documentation infrastructure, Pabau’s resources on medical forms for clinical practice are a practical starting point.

Document every assessment finding, every time

Pabau’s structured digital forms and patient records help musculoskeletal clinicians capture special test results consistently, so nothing gets lost between appointments. See how it works for physiotherapy and sports medicine practices.

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Conclusion

Differentiating cervical radiculopathy from shoulder pathology at the bedside is a common and consequential clinical challenge. The arm squeeze test addresses it with a simple, reproducible technique that requires no equipment and takes under a minute to perform.

Its 96% sensitivity makes it a reliable rule-out screen: a negative result substantially reduces the likelihood of cervical nerve root involvement. Its 69% specificity means it should always be paired with corroborating tests, particularly Spurling’s or the distraction test, when a positive result needs clinical confirmation. For clinics that want to document these findings reliably across every assessment, Pabau’s digital assessment forms provide the structured template infrastructure to make that consistency achievable. To see how it works for your practice, book a demo.

Continue your research

Need a structured approach to physiotherapy compliance? Mandatory compliance for physiotherapy clinics covers the documentation and governance standards UK physiotherapy practices need to meet.

Want to improve how your team writes clinical notes? Safer clinical notes provides a practical framework for writing defensible, clear assessment documentation.

Building an assessment protocol for return-to-sport patients? Return-to-running protocol for physical therapy covers evidence-based progression criteria for post-injury rehabilitation.

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