The Log Roll Test is a passive hip special test performed with the client lying supine while the professional gently rolls the relaxed lower limb into internal and external rotation. It is commonly used to support assessment reasoning around intra-articular hip irritation, capsular laxity, hip instability-type presentations, labral involvement, femoroacetabular impingement-type presentations or general hip joint symptom response.
A positive finding may include familiar hip or groin pain, clicking, apprehension, guarding, excessive range, restricted range or side-to-side asymmetry. However, the Log Roll Test does not confirm a specific hip condition on its own and should be interpreted alongside history, symptom behaviour, hip range of motion, strength, functional testing and other hip special tests.
The Log Roll Test is a simple but useful hip special test. It is performed with the client lying on their back while the professional passively rotates the whole lower limb, like rolling a log. The movement produces hip internal and external rotation with minimal active effort from the client.
Because the test is gentle and relatively unloaded, it can be useful early in a hip assessment to observe whether passive hip rotation reproduces familiar symptoms. It may also help identify guarding, capsular irritability, excessive passive rotation, asymmetry or mechanical symptoms.
The Log Roll Test is often described as a test for intra-articular hip involvement. However, that wording should be used carefully. A positive test may support suspicion that the hip joint is relevant to the presentation, but it does not confirm the exact structure or condition involved. Pain, clicking or abnormal movement may be influenced by labral irritation, capsular sensitivity, femoroacetabular morphology, ligamentous laxity, muscle guarding, hip osteoarthritis-type changes or other causes.
For Measurz users, the value of the Log Roll Test is in recording a repeatable finding: side tested, pain location, symptom quality, range response, asymmetry, clicking, apprehension and comparison side.
Test name: Log Roll Test
Region: Hip and groin
Primary purpose: Assess passive hip rotation symptom response and possible intra-articular hip contribution
Commonly associated presentations: Hip/groin pain, labral involvement, FAI-type symptoms, hip joint irritability, capsular laxity, hip instability-type presentations
Positive finding: Familiar pain, clicking, apprehension, guarding, abnormal end-feel, excessive range or meaningful side-to-side difference
Negative finding: No familiar pain, no mechanical symptoms, no meaningful asymmetry and relaxed passive rotation
Main limitation: It does not identify one specific structure or condition on its own.
The Log Roll Test is a passive hip rotation test performed in supine.
The professional gently rolls the entire lower limb into internal and external rotation while the client stays relaxed. The movement rotates the femoral head within the acetabulum and can provoke symptoms if the hip joint or surrounding structures are sensitive.
The test may be used to observe:
Hip internal rotation response
Hip external rotation response
Pain reproduction
Mechanical symptoms
Apprehension
Guarding
Capsular laxity
Side-to-side asymmetry
Range difference
End-feel quality
The Log Roll Test is usually performed as part of a broader hip assessment rather than as a stand-alone test.
The Log Roll Test may be used to support assessment reasoning around:
Hip or groin pain
Intra-articular hip symptom contribution
Hip joint irritability
Labral involvement
FAI-type presentations
Capsular laxity
Hip instability-type presentations
Hip osteoarthritis-type presentations
Passive hip rotation tolerance
Side-to-side hip mobility comparison
Early screening before more provocative tests
It is often useful because it is less aggressive than many loaded or end-range hip provocation tests.
The Log Roll Test assesses the client’s response to passive hip internal and external rotation in supine.
It may provide information about:
Passive hip rotation tolerance
Hip or groin symptom reproduction
Mechanical symptoms such as clicking or catching
Protective guarding
Rotation range asymmetry
Possible capsular laxity or excessive rotation
Comparison between sides
Whether passive hip motion is relevant to symptoms
It does not directly assess:
Labral integrity with certainty
Cartilage status
FAI morphology
Hip osteoarthritis with certainty
Imaging findings
Hip strength
Dynamic gait mechanics
Pelvic control
Readiness for sport or work
Treatment needs
The Log Roll Test may be useful for clients with:
Hip pain
Groin pain
Anterior hip symptoms
Mechanical hip symptoms
Clicking, catching or giving-way sensations
Pain with turning, pivoting or rolling in bed
Hip stiffness or asymmetry
Suspected hip joint irritability
Possible hip instability-type symptoms
A need for baseline and retest documentation
It may also be useful for professionals learning to differentiate passive hip rotation response from active movement or loaded functional tasks.
Consider using the Log Roll Test when:
Hip or groin symptoms are part of the presentation
You want a gentle early hip provocation test
Passive rotation may reproduce symptoms
You need to compare passive rotation side to side
Mechanical symptoms are reported
You are deciding whether more provocative hip tests are appropriate
You are building a broader hip assessment profile
It can be used before stronger tests such as FADIR, FABER, Scour or Fitzgerald when irritability needs to be considered.
Use caution or avoid the test when:
There is suspected fracture, dislocation or acute major trauma
The hip is highly irritable
Passive rotation is already sharply painful
Recent surgery makes passive rotation inappropriate
The client cannot tolerate supine positioning
The client has severe guarding
Neurological symptoms require further assessment
The professional cannot move the limb safely
Stop the test if symptoms increase sharply, the client asks to stop, the hip feels unstable in a concerning way, or the movement cannot be performed safely.
The Log Roll Test usually requires no special equipment.
Optional equipment includes:
Measurz app
Pain rating scale
Plinth or firm testing surface
Goniometer or inclinometer if measuring rotation range separately
Notes field for symptoms, clicking, range and comparison side
Video recording for education or comparison where appropriate
Ask the client to lie supine on a plinth or firm surface.
Explain that you will gently rotate the whole leg in and out while they stay relaxed. Test the less symptomatic side first where appropriate.
The client lies supine with:
Head and trunk relaxed
Pelvis neutral
Both legs extended
Tested leg relaxed
Foot and ankle relaxed
No active assistance from the client
The tested limb should be free to rotate from the hip.
The professional stands at the foot or side of the tested leg.
The professional controls the lower limb from the ankle, lower leg or distal thigh depending on comfort and limb size.
One or both hands may be placed around the lower leg, ankle or distal thigh.
The grip should be supportive and comfortable, not painful.
The pelvis should be observed for excessive movement. The goal is to rotate the hip, not twist the lumbar spine or pelvis.
Avoid forcing pelvic stabilisation unless required for safety or consistency.
Gently roll the whole lower limb into:
Hip internal rotation
Hip external rotation
The movement should be slow, smooth and controlled.
The professional observes range, end-feel, symptoms and asymmetry.
Tell the client:
“Let your leg stay relaxed. I am going to gently roll your leg in and out. Tell me if this reproduces your familiar symptoms, where you feel them and whether you notice clicking, catching or apprehension.”
A positive finding may include:
Familiar hip or groin pain
Painful clicking or catching
Apprehension
Protective guarding
Excessive passive rotation compared with the other side
Restricted passive rotation compared with the other side
Abnormal or painful end-feel
Reproduction of the client’s typical symptoms
Record the specific feature that made the test positive.
A negative finding may include:
No familiar pain
No relevant clicking or catching
No apprehension
Relaxed passive rotation
Similar range to the other side
No meaningful symptom reproduction
A negative finding does not fully exclude hip involvement.
Stop the test if:
Sharp pain occurs
The client asks to stop
The client cannot relax
Apprehension becomes significant
The hip feels unstable in a concerning way
Neurological symptoms occur
The test cannot be performed safely
The Log Roll Test should be gentle. Avoid sudden twisting, forceful rotation or repeated painful testing.
A positive Log Roll Test may increase suspicion that the hip joint or surrounding structures are relevant to the client’s symptoms. This is particularly meaningful when the test reproduces familiar anterior hip or groin pain, painful clicking, apprehension or a clear side-to-side difference.
Excessive external or internal rotation compared with the other side may suggest capsular laxity or instability-type features, but this does not confirm instability by itself. Restricted rotation may suggest stiffness, guarding, pain inhibition or structural limitation, depending on the broader assessment.
A positive test does not confirm a labral tear, FAI syndrome, hip osteoarthritis, capsular laxity or any other specific condition. It should be interpreted as a symptom and movement response.
A negative Log Roll Test may reduce suspicion that passive supine rotation is a major symptom driver in that session. However, a negative test does not exclude hip-related symptoms, especially if symptoms occur during loaded, end-range, sport-specific or dynamic tasks.
The result is more meaningful when interpreted with:
History
Pain location
Mechanical symptoms
Hip range of motion
FADIR
FABER
Scour Test
Fitzgerald Test
Hip strength
Gait
Squat or lunge assessment
Sport or work demands
At the time of writing, high-quality diagnostic accuracy evidence reporting sensitivity, specificity or likelihood ratios for the Log Roll Test as a stand-alone diagnostic test appears limited.
This means the test should be used as a symptom provocation and assessment reasoning tool rather than as a stand-alone diagnostic test.
Current evidence and interpretation points include:
Hip physical examination tests vary in diagnostic accuracy across conditions and populations.
Systematic review evidence suggests that most individual hip physical examination tests have weak diagnostic properties when used alone.
The Log Roll Test may be clinically useful because it is a relatively gentle way to observe passive hip rotation response.
A positive test may increase suspicion of hip joint involvement when it matches history and other findings.
A negative test does not fully exclude intra-articular hip pathology, labral involvement, FAI-type symptoms or other hip-related sources.
Because formal diagnostic accuracy values are limited, professionals should record the response descriptively rather than claiming diagnostic certainty.
Inter-rater reliability evidence for the Log Roll Test has been reported around κ = 0.61, suggesting moderate-to-substantial agreement when the test is performed and interpreted consistently.
Reliability may improve when the professional standardises:
Client position
Limb position
Movement speed
Rotation range
Symptom questions
Definition of a positive test
Side-to-side comparison
Recording of pain, clicking and apprehension
Validity is limited as a stand-alone diagnostic test. The Log Roll Test has practical value as a passive hip rotation and symptom response test, but it does not directly verify labral, capsular, cartilage or bony pathology.
Common errors include:
Rotating too forcefully
Moving too quickly
Allowing the client to actively assist
Not recording pain location
Treating painless clicking as automatically positive
Ignoring apprehension
Not comparing sides
Not recording range asymmetry
Assuming a positive test confirms labral pathology
Assuming a negative test excludes hip involvement
Limitations include:
Diagnostic accuracy evidence is limited
Passive supine testing may not reflect dynamic loading
Pain may arise from multiple structures
Mechanical symptoms are not specific to one condition
Range may be influenced by guarding
Laxity may be normal for some clients
The test should not be used alone for decision-making
The Log Roll Test may be useful for:
Early hip symptom screening
Observing passive hip rotation response
Assessing irritability before stronger tests
Recording mechanical symptom reproduction
Comparing side-to-side range and apprehension
Supporting intra-articular hip assessment reasoning
Client education
Measurz baseline and retest documentation
In Measurz, Log Roll Test findings can be recorded alongside FABER, FADIR, Fitzgerald, Scour, hip range of motion, hip strength, gait, squat and functional assessment.
Record:
Test name: Log Roll Test
Side tested
Result: positive, negative, unclear or unable to test
Pain score
Symptom location
Symptom quality
Familiar symptom reproduction
Internal rotation response
External rotation response
Clicking, catching or apprehension
Range asymmetry
End-feel
Comparison side
Irritability
Guarding or compensations
Reason for stopping if relevant
Related findings
Confidence in result
Further assessment notes if appropriate
Retest date if relevant
Recording these details improves repeatability, communication, client education, assessment reasoning, monitoring over time, team consistency and reporting quality.
FABER Test
FADIR Test
Fitzgerald Test
Scour Test
Hip internal rotation
Hip external rotation
Hip flexion range of motion
Hip strength testing
Single-leg squat
Gait assessment
Toe Touch Test
It assesses passive hip rotation response and may support reasoning around hip joint involvement, irritability, laxity or mechanical symptoms.
A positive finding may include familiar hip or groin pain, painful clicking, apprehension, guarding, abnormal range or clear side-to-side asymmetry.
No. It may support suspicion of intra-articular hip involvement, but it does not confirm a labral tear.
No. A negative result does not fully exclude hip-related symptoms, especially during loaded or dynamic tasks.
Yes. The test is passive, so active assistance or resistance can change the result.
No. Clicking is more meaningful when it is painful, familiar or associated with the client’s typical symptoms.
Yes. Side-to-side comparison improves interpretation.
No. The movement should be slow, gentle and controlled.
The Log Roll Test is a passive supine hip rotation test.
It can help record hip symptom response, mechanical symptoms, guarding, laxity or range asymmetry.
A positive test may support hip-related assessment reasoning but does not confirm a specific condition.
A negative test does not fully exclude hip involvement.
Inter-rater reliability has been reported around κ = 0.61 when performed consistently.
Measurz recording should include side, symptoms, clicking, apprehension, range response, end-feel and comparison side.
Martin, R. L., & Sekiya, J. K. (2008). The interrater reliability of 4 clinical tests used to assess individuals with musculoskeletal hip pain. Journal of Orthopaedic & Sports Physical Therapy, 38(2), 71–77. https://doi.org/10.2519/jospt.2008.2677
Reiman, M. P., Goode, A. P., Hegedus, E. J., Cook, C. E., & Wright, A. A. (2013). Diagnostic accuracy of clinical tests of the hip: A systematic review with meta-analysis. British Journal of Sports Medicine, 47(14), 893–902. https://doi.org/10.1136/bjsports-2012-091035
Reiman, M. P., Goode, A. P., Cook, C. E., Hölmich, P., & Thorborg, K. (2015). Diagnostic accuracy of clinical tests for the diagnosis of hip femoroacetabular impingement/labral tear: A systematic review with meta-analysis. British Journal of Sports Medicine, 49(12), 811. https://doi.org/10.1136/bjsports-2014-094302
Reiman, M. P., Thorborg, K., & Hölmich, P. (2015). Physical examination tests for hip dysfunction and injury. British Journal of Sports Medicine, 49(6), 357–361. https://doi.org/10.1136/bjsports-2013-092994
