Low back, buttock and pelvic-region symptoms can be influenced by many factors, including the lumbar spine, hips, sacroiliac-region structures, pelvic girdle load transfer, muscle function, symptom irritability, training load, occupational demands and broader pain mechanisms.
Pelvic Spring Tests are commonly used to explore whether manual loading through the pelvis or sacrum reproduces the client’s familiar symptoms.
The term “Pelvic Spring Tests” may refer to several related procedures, including:
sacral spring or sacral thrust-style testing
prone springing through the sacrum
springing through the ilium or innominate
anterior or posterior pelvic springing
side-to-side pelvic comparison
sacroiliac joint provocation-style springing
Because different professionals use different variations, the exact method should always be clear. A result is only useful when the position, force direction, symptom response and comparison side are understood.
The most evidence-informed approach is to interpret Pelvic Spring Tests as part of a broader lumbopelvic assessment, not as a stand-alone diagnosis.
Test group: Pelvic Spring Tests
Body region: Pelvis, sacroiliac joints and lumbopelvic region
Type: Manual orthopaedic/special test group
Common purpose: Assess symptom response to pelvic or sacral springing/compression
Common variations: Sacral spring, sacral thrust, pelvic or innominate springing
Positive finding: Familiar pelvic, buttock, SIJ-region or low back symptoms reproduced
Negative finding: No familiar symptoms and no meaningful side-to-side difference
Best used for: Lumbopelvic symptom provocation and assessment reasoning
Key limitation: Pelvic Spring Tests do not confirm SIJ pain, pelvic dysfunction or pelvic alignment findings on their own
Pelvic Spring Tests are hands-on procedures where the professional applies a controlled springing or compression force through the pelvis, sacrum or ilium.
They may be used to assess whether a specific manual load reproduces the client’s symptoms.
The test may provide information about:
familiar pain reproduction
symptom location
side-to-side sensitivity
response to pelvic loading
guarding or apprehension
whether further SIJ provocation testing may be useful
whether lumbopelvic load transfer is relevant to the client’s presentation
The most useful clinical finding is usually familiar symptom reproduction, not the perceived feel of pelvic motion alone.
Pelvic Spring Tests are used because some clients with low back, buttock or pelvic symptoms report pain during activities that load the lumbopelvic region.
These may include:
walking
running
stairs
rolling in bed
prolonged standing
lifting
bending
twisting
single-leg loading
sport-specific change of direction
gym-based lower-limb training
Pelvic Spring Tests may help professionals:
map symptom location
assess response to pelvic loading
compare sides
identify whether symptoms are familiar
decide whether broader SIJ or lumbopelvic testing is useful
monitor whether symptom irritability has changed over time
They should not be used to claim that the pelvis is “out”, “stuck” or “misaligned”.
Pelvic Spring Tests assess symptom response to manual pelvic or sacral loading.
They may provide insight into:
pelvic-region sensitivity
SIJ-region symptom provocation
buttock or low back symptom reproduction
side-to-side symptom difference
response to compression or springing
guarding, apprehension or irritability
whether a broader SIJ provocation cluster may be relevant
They do not directly measure:
pelvic alignment
innominate rotation
sacral torsion
SIJ dysfunction
SIJ pain with certainty
ligament integrity
lumbar disc or facet involvement
hip pathology
tissue healing
sport or work readiness
Pelvic Spring Tests may be useful for clients with:
low back pain
buttock pain
pelvic girdle pain
SIJ-region symptoms
symptoms with rolling or transitional movement
symptoms with single-leg loading
symptoms with walking, running or stairs
pregnancy or postpartum-related pelvic symptoms where appropriate
sport-related lumbopelvic symptoms
symptoms that appear influenced by pelvic loading
They may be useful for professionals who need a structured way to assess whether manual pelvic loading reproduces the client’s familiar symptoms.
Use Pelvic Spring Tests when you want to understand whether gentle pelvic or sacral loading reproduces the client’s familiar symptoms.
They may be useful during:
initial lumbopelvic assessment
pelvic girdle symptom mapping
SIJ-region assessment reasoning
reassessment after a training block
return-to-running monitoring
return-to-lifting monitoring
sport-related lumbopelvic symptom monitoring
pregnancy or postpartum lumbopelvic assessment where appropriate
They are usually more useful when combined with history, lumbar assessment, hip assessment, functional movement and SIJ pain provocation tests.
Use caution or avoid Pelvic Spring Tests when:
recent significant trauma is present
fracture is suspected
red flags are present
neurological symptoms are severe or worsening
symptoms are highly irritable before testing
pregnancy-related testing requires a more modified approach
recent surgery makes compression inappropriate
the client cannot tolerate the test position
the test would not change assessment reasoning
Pelvic Spring Tests should not be used to:
diagnose SIJ dysfunction
confirm pelvic malalignment
prove a joint is “stuck”
explain symptoms on their own
clear someone for sport
clear someone for work
replace professional judgement
replace medical assessment
Stop the test if pain increases sharply, symptoms spread, neurological symptoms appear, the client becomes distressed or the client asks to stop.
Pelvic Spring Tests usually require no equipment.
Useful resources include:
pain rating scale
body chart or symptom map
stable assessment surface
lumbopelvic assessment notes
related lumbar, hip or SIJ test findings
functional movement findings
pregnancy/postpartum context notes where relevant
Explain the purpose of the test before starting.
Example wording:
“I am going to apply gentle pressure through your pelvis or sacrum to see whether it reproduces your familiar symptoms. This does not diagnose the cause on its own, but it helps us understand how your symptoms respond to this type of loading.”
Before testing, ask:
Where are your symptoms?
What activities reproduce them?
Is the pain local, referred or widespread?
Are these symptoms familiar?
Is there any recent trauma?
Are there any neurological symptoms?
Is there any reason to avoid compression today?
Pelvic Spring Tests may be performed in:
prone
supine
side-lying
supported modified positions
pregnancy/postpartum-modified positions where appropriate
The exact variation should be selected based on the client, symptom irritability and professional scope.
Ask the client to:
stay relaxed
breathe normally
report symptoms immediately
describe exact symptom location
say whether symptoms are familiar
rate pain if symptoms are reproduced
report tingling, numbness or unusual symptoms
ask to stop at any time
Client position: usually prone, if tolerated
Professional position: standing beside the client
Hand placement: over the sacrum
Force direction: anterior pressure through the sacrum toward the table
Positive finding: familiar SIJ-region, buttock, pelvic or low back symptoms reproduced
This variation overlaps with SIJ pain provocation testing and should be interpreted in a cluster rather than alone.
Client position: prone, supine or side-lying depending on the method
Professional position: beside the client
Hand placement: over the ilium, ASIS, PSIS or pelvic crest depending on the variation
Force direction: controlled springing through the pelvic bone
Positive finding: familiar symptoms reproduced or meaningful side-to-side symptom difference
Perceived mobility differences alone have weaker evidence and should be interpreted cautiously.
Retest using the same:
position
test variation
force direction
symptom questions
comparison side
pain scale
activity context
Retesting may be useful after changes in training load, symptom irritability, return-to-running exposure, lifting exposure or broader lumbopelvic function.
Pelvic Spring Tests should be gentle and controlled.
Avoid aggressive thrusting, repeated strong compression or testing through severe pain. In acute trauma, suspected fracture, systemic symptoms or significant neurological signs, provocative pelvic testing may be inappropriate.
A positive Pelvic Spring Test may include:
familiar pelvic pain reproduced
familiar SIJ-region pain reproduced
familiar buttock pain reproduced
familiar low back pain reproduced
clear side-to-side symptom difference
pain that matches the client’s activity complaint
guarding or apprehension related to familiar symptoms
A positive finding may support lumbopelvic or SIJ-region assessment reasoning, especially when it matches the client’s history and other tests.
A negative Pelvic Spring Test may include:
no familiar symptoms
no meaningful side-to-side symptom difference
only mild non-familiar pressure discomfort
symptoms that do not match the history
A negative single test does not fully exclude SIJ-region contribution. A negative cluster of SIJ provocation tests may reduce suspicion more than one isolated negative finding.
The evidence for Pelvic Spring Tests should be separated into:
SIJ pain provocation test evidence
pelvic mobility or positional spring test evidence
Evidence is stronger for clusters of SIJ pain provocation tests than for isolated pelvic mobility or alignment findings.
Common SIJ provocation tests include:
thigh thrust
sacral thrust
distraction
compression
Gaenslen’s test
FABER/Patrick’s test in some clusters
Laslett and colleagues reported that three or more positive SIJ provocation tests had sensitivity of 94% and specificity of 78% against diagnostic injection in a selected sample.
However, a 2021 systematic review and meta-analysis reported more cautious findings. It concluded that SIJ pain provocation clusters had limited ability to rule in SIJ pain, with very low certainty evidence, while negative clusters were more useful for reducing suspicion.
This means:
one isolated Pelvic Spring Test should not be treated as diagnostic
familiar symptom reproduction is more useful than perceived mobility alone
SIJ provocation clusters are more evidence-informed than single-test findings
results should be interpreted with history, lumbar assessment, hip assessment and function
Reliability and validity depend on the exact test variation used.
Reliability may be affected by:
client position
hand placement
force direction
amount of pressure
speed of springing
symptom irritability
client guarding
professional experience
whether pain or movement is being judged
Validity is stronger when the test is interpreted as a symptom provocation test.
Validity is weaker when the test is interpreted as:
proof of pelvic malalignment
confirmation of SIJ dysfunction
evidence that a joint is stuck
a stand-alone diagnostic test
a reason to clear or restrict activity on its own
Reliability improves when the method is standardised and the result is based on familiar symptom reproduction rather than vague movement feel.
Common errors include:
using one Pelvic Spring Test as a diagnosis
claiming the pelvis is “out”
relying on perceived mobility without symptom context
not recording the exact variation used
applying too much pressure
testing through high irritability
not comparing sides
not confirming whether symptoms are familiar
ignoring lumbar or hip contribution
ignoring neurological symptoms or red flags
Limitations include:
variable test names and techniques
limited evidence for pelvic mobility or positional spring tests
manual force is difficult to standardise
symptom reproduction is not structure-specific
side-to-side feel is subjective
SIJ-region pain can overlap with lumbar, hip and pelvic presentations
positive provocation clusters still do not confirm SIJ pain with certainty
Pelvic Spring Tests may help professionals:
map pelvic or SIJ-region symptom response
compare left and right pelvic sensitivity
decide whether broader SIJ provocation testing is useful
monitor symptom irritability over time
support client education
document whether familiar symptoms are reproduced
guide further lumbar, hip or functional assessment
For sport and performance clients, interpretation should also consider running, sprinting, cutting, single-leg loading, strength, mobility and training load.
For general fitness clients, interpretation may relate to squats, lunges, deadlifts, stairs, walking, running, floor transfers or prolonged standing.
For pregnancy or postpartum clients, use modified positions and cautious interpretation. Pelvic girdle symptoms can be influenced by load, sleep, fatigue, hormonal context, activity exposure and individual tolerance.
They assess whether gentle manual loading or springing through the pelvis, sacrum or SIJ-region reproduces familiar symptoms.
Not always. Sacral thrust or sacral spring is one common variation, but Pelvic Spring Tests may also include springing through the ilium or innominate.
No. They may support assessment reasoning, but they do not diagnose SIJ dysfunction or confirm a specific pain source on their own.
A positive finding is usually familiar pain or symptoms reproduced during the springing or compression force.
A negative test means that this specific springing direction did not reproduce familiar symptoms. It does not fully exclude SIJ-region involvement.
Pelvic mobility or positional findings should be interpreted cautiously. Evidence is stronger for symptom provocation clusters than for isolated mobility or alignment conclusions.
No. They should be combined with history, pain mapping, lumbar assessment, hip assessment, SIJ provocation tests and functional movement assessment.
No. They should be avoided or modified when there is recent trauma, suspected fracture, red flags, severe irritability, concerning neurological symptoms or inability to tolerate the position.
Pelvic Spring Tests are manual lumbopelvic assessment procedures.
They may include sacral spring/sacral thrust and pelvic or innominate springing variations.
They are most useful for documenting familiar symptom reproduction.
They should not be used to diagnose SIJ dysfunction or pelvic malalignment.
Evidence is stronger for SIJ pain provocation test clusters than for isolated pelvic mobility tests.
Positive findings should be interpreted cautiously and alongside the broader assessment.
Negative findings across a provocation cluster may reduce suspicion of SIJ-region pain more than one isolated negative test.
Interpretation is strongest when combined with symptoms, history, lumbar/hip assessment and functional movement.
Laslett, M., Aprill, C. N., McDonald, B., & Young, S. B. (2005). Diagnosis of sacroiliac joint pain: Validity of individual provocation tests and composites of tests. Manual Therapy, 10(3), 207–218. https://doi.org/10.1016/j.math.2005.01.003
Laslett, M., & Williams, M. (1994). The reliability of selected pain provocation tests for sacroiliac joint pathology. Spine, 19(11), 1243–1249. PMID: 8073316
Saueressig, T., Owen, P. J., Diemer, F., Zebisch, J., & Belavy, D. L. (2021). Diagnostic accuracy of clusters of pain provocation tests for detecting sacroiliac joint pain: Systematic review with meta-analysis. Journal of Orthopaedic & Sports Physical Therapy, 51(9), 422–431. https://doi.org/10.2519/jospt.2021.10469
Vleeming, A., Albert, H. B., Östgaard, H. C., Sturesson, B., & Stuge, B. (2008). European guidelines for the diagnosis and treatment of pelvic girdle pain. European Spine Journal, 17(6), 794–819. https://doi.org/10.1007/s00586-008-0602-4
