The Passive Compression Test is a posterior shoulder assessment used to evaluate symptom provocation during passive shoulder compression and movement. It may help identify posterior shoulder irritability and instability-related symptoms when interpreted alongside broader shoulder assessment findings.
Posterior shoulder pain and instability presentations can be challenging to assess due to overlapping symptoms with rotator cuff irritation, labral involvement and general shoulder loading sensitivity. The Passive Compression Test is one of several shoulder orthopaedic assessments used to reproduce posterior shoulder symptoms during controlled passive loading.
The test is commonly used alongside:
posterior instability testing
labral assessment
shoulder ROM assessment
strength testing
symptom history
movement assessment
Although the test may help increase suspicion of posterior shoulder involvement in some populations, it should not be interpreted as a stand-alone diagnostic tool.
Primary purpose: Assess posterior shoulder symptom provocation
Body region: Shoulder
Commonly associated with: Posterior instability and posterior shoulder irritation
Positive finding: Reproduction of familiar posterior shoulder symptoms
Negative finding: No meaningful symptom reproduction
Clinical role: Supports assessment reasoning but does not confirm pathology independently
Best interpreted with: Instability findings, history and broader shoulder assessment
The Passive Compression Test is a shoulder orthopaedic assessment involving passive compression and movement of the humerus to assess posterior shoulder symptom provocation.
The test is designed to:
reproduce posterior shoulder symptoms
assess tolerance to posterior shoulder loading
evaluate instability-related discomfort
support posterior shoulder assessment reasoning
The Passive Compression Test may help:
reproduce familiar posterior shoulder symptoms
assess posterior loading sensitivity
contribute to instability assessment
support shoulder assessment clusters
guide further shoulder assessment
The test may be particularly relevant in:
overhead athletes
contact athletes
throwing sports
clients reporting posterior shoulder pain
instability-related presentations
The test is intended to assess:
posterior shoulder symptom behaviour
response to passive compression
posterior loading tolerance
instability-related symptom provocation
A positive finding may suggest increased posterior shoulder irritability or loading sensitivity. However, the test does not confirm structural pathology independently.
The Passive Compression Test may be useful for:
exercise professionals
sports performance settings
shoulder instability screening
allied health assessment environments
overhead athlete monitoring
movement assessment education
Consider using the Passive Compression Test when a client reports:
posterior shoulder pain
instability sensations
pain during pushing movements
pain during horizontal loading
clicking or shifting sensations
discomfort during throwing
The test may become more meaningful when combined with:
Kim Test findings
Load and Shift findings
symptom history
strength testing
movement assessment
Use caution when:
acute trauma is suspected
symptoms are highly irritable
recent dislocation occurred
fracture is suspected
severe pain is present
post-operative restrictions exist
Stop testing if:
pain becomes excessive
instability symptoms escalate
neurological symptoms occur
the client requests cessation
Assessment plinth or chair
Open assessment space
Documentation system
No specialised equipment is required.
The client may sit or lie comfortably depending on the preferred testing variation.
Shoulder positioned appropriately for passive posterior loading
Elbow supported where required
Stand beside the client while controlling shoulder movement and compression.
Passively position the shoulder.
Apply controlled compression/loading through the humerus.
Move the shoulder through the required range.
Assess symptom response and movement tolerance.
Ask the client to:
relax during testing
report familiar symptoms
describe instability or shifting sensations
report pain location
A positive finding may involve:
reproduction of familiar posterior shoulder pain
instability sensations
discomfort during compression
apprehension or guarding
A negative finding involves:
no meaningful symptom reproduction
comfortable passive movement
absence of instability sensations
A positive Passive Compression Test may increase suspicion of:
posterior shoulder irritability
posterior instability-related symptoms
posterior loading sensitivity
The finding may become more meaningful when combined with:
instability history
positive posterior shoulder tests
throwing-related symptoms
clicking or shifting sensations
However, the test does not confirm labral pathology or structural instability independently.
A negative finding may reduce suspicion of posterior symptom provocation during passive loading.
However:
posterior shoulder pathology may still be present
symptoms may vary depending on irritability
instability may not reproduce consistently
Evidence specific to the Passive Compression Test remains limited compared to more widely researched shoulder orthopaedic tests.
Current literature suggests:
posterior shoulder assessment is more accurate when multiple findings are combined
isolated instability tests have variable diagnostic accuracy
symptom reproduction alone is insufficient for diagnosis
The test is generally best interpreted within a broader shoulder instability assessment process.
At the time of writing:
strong reliability data specific to the Passive Compression Test remains limited
MDC and SEM values specific to this test are not well established
Reliability may be influenced by:
compression consistency
shoulder positioning
symptom irritability
client guarding
examiner experience
Common errors include:
excessive compression force
inconsistent positioning
poor symptom clarification
overinterpreting pain alone
failure to compare sides
Key limitations include:
limited diagnostic research
overlap with other shoulder presentations
variable symptom reproduction
limited stand-alone value
The Passive Compression Test may help:
reproduce posterior shoulder symptoms
support instability assessment reasoning
guide further assessment
monitor symptom behaviour over time
improve structured shoulder documentation
Record:
Test name: Passive Compression Test
Side tested
Positive, negative or unclear finding
Pain location
Pain score
Instability sensations
Guarding or apprehension
Shoulder position used
Compression direction
Comparison side findings
Related shoulder findings
Retest date
Related shoulder assessments may include:
Kim Test
Load and Shift Test
O’Brien’s Test
Apprehension Test
Jerk Test
The test assesses posterior shoulder symptom provocation during passive compression and movement.
No. The test may contribute to assessment reasoning but does not confirm structural instability independently.
A positive finding may involve reproduction of familiar posterior shoulder symptoms or instability sensations.
No. Posterior shoulder assessments are generally more useful when interpreted alongside broader shoulder findings.
The Passive Compression Test assesses posterior shoulder symptom provocation.
A positive finding may increase suspicion of posterior loading sensitivity or instability-related symptoms.
The test does not confirm structural pathology independently.
The test is most useful alongside broader instability and shoulder assessment findings.
Cook, C., & Hegedus, E. J. (2021). Orthopedic physical examination tests: An evidence-based approach (3rd ed.). Pearson.
Morrow, E. K., Morris, J. H., & Struyf, F. (2020). Clinical examination and physical assessment of shoulder pain. British Journal of Sports Medicine, 54(20), 1208–1215. https://doi.org/10.1136/bjsports-2019-101168
Pizzari, T., & Jaggi, A. (2021). Shoulder instability: Current approaches to assessment and management. Journal of Orthopaedic & Sports Physical Therapy, 51(7), 347–356. https://doi.org/10.2519/jospt.2021.0607
