The Windlass Test assesses plantar fascia tension sensitivity by extending the big toe and observing heel or arch pain reproduction. A positive result may suggest plantar fascia irritation but does not confirm plantar fasciitis on its own.
Heel and arch pain are common in running, jumping and prolonged standing populations.
The Windlass Test tensions the plantar fascia through big toe extension to assess symptom response under stretch and load.
It is commonly used alongside:
plantar fascia palpation
walking assessment
calf flexibility testing
load tolerance assessment
A positive finding may increase suspicion of plantar fascia irritation but should always be interpreted alongside history and other findings.
Test name: Windlass Test
Body region: Foot and ankle
Purpose: Assess plantar fascia irritation
Positive finding: Heel or arch pain during toe extension
Negative finding: No symptom reproduction
Best used with: Palpation, walking assessment and calf flexibility testing
Key limitation: Symptoms may overlap with other heel pain conditions
The Windlass Test tensions the plantar fascia by extending the big toe while observing for pain reproduction in the heel or arch.
As the toe extends, the plantar fascia tightens and elevates the arch, increasing tension through the plantar structures.
The test may help:
assess plantar fascia irritation
reproduce heel pain symptoms
guide foot loading modification
support assessment reasoning in plantar heel pain presentations
It is commonly used in:
runners
court sport athletes
standing-based occupations
walking-related heel pain presentations
The Windlass Test assesses:
plantar fascia tension sensitivity
symptom response during fascia loading
arch pain reproduction
heel pain provocation
It does not confirm plantar fasciitis or identify tissue degeneration on its own.
This test may be useful for:
exercise professionals
rehabilitation practitioners
running coaches
movement assessment professionals
individuals with heel or arch pain
Use when there is:
heel pain during walking or running
morning foot stiffness
pain during push-off
tenderness around the plantar fascia region
Use caution with:
acute foot trauma
suspected fracture
severe irritability
inability to tolerate toe extension
post-surgical restrictions
Stop testing if:
pain becomes severe
cramping or guarding prevents assessment
symptoms escalate significantly
Treatment table or standing space
Pain scale
Measurz recording workflow
The test may be performed in standing or sitting depending on symptom irritability and weight-bearing tolerance.
Standing version:
client stands naturally
foot flat on the ground
Non-weight-bearing version:
client sits with foot relaxed
Position beside the foot being tested.
Stabilise the foot with one hand while extending the big toe with the other.
Maintain foot position and avoid excessive ankle movement.
Passively extend the big toe into dorsiflexion.
Observe:
heel pain
arch pain
symptom location
symptom intensity
Ask the client to:
remain relaxed
report familiar symptoms
describe pain location and intensity
A positive Windlass Test may include:
heel pain reproduction
medial arch pain
familiar plantar fascia symptoms during toe extension
A negative finding involves:
no symptom reproduction
tolerance to toe extension
no plantar fascia discomfort
Stop if:
pain becomes severe
guarding limits movement
symptoms become highly irritable
Avoid aggressive toe extension in highly painful presentations.
Compare both sides where appropriate.
A positive Windlass Test may suggest plantar fascia irritation, especially when symptoms match:
morning pain
walking pain
tenderness near the calcaneal attachment
It becomes more meaningful when combined with:
plantar fascia palpation
load history
calf flexibility assessment
A negative test may reduce suspicion of plantar fascia tension sensitivity, but it does not exclude other foot or heel pain mechanisms.
The test does not confirm plantar fasciitis on its own.
Diagnostic accuracy evidence for the Windlass Test is limited and varies across studies.
Some studies have reported moderate specificity in weight-bearing testing, but results are inconsistent across populations and methodologies.
Condition or presentation: plantar heel pain / suspected plantar fasciopathy
Population: adults with plantar heel pain
Test variation: weight-bearing and non-weight-bearing Windlass Test
Reference standard: clinical diagnosis and imaging findings depending on study
Sensitivity: variable across studies
Specificity: variable across studies
Positive likelihood ratio: limited evidence available
Negative likelihood ratio: limited evidence available
Key limitations: symptom overlap, test variation and inconsistent reference standards
The Windlass Test should be used as part of a broader foot and ankle assessment rather than as a standalone diagnostic tool.
Reliability improves with:
consistent toe extension angle
symptom clarification
side-to-side comparison
Validity is stronger when the test reproduces familiar symptoms alongside:
plantar fascia tenderness
load intolerance
morning stiffness patterns
Common errors include:
forcing excessive toe extension
not clarifying symptom location
ignoring symptom irritability
failing to compare sides
Limitations include:
overlap with multiple heel pain conditions
subjective pain interpretation
limited standalone diagnostic value
The Windlass Test may help:
assess plantar fascia irritability
guide exercise modification
monitor heel pain changes over time
support return-to-running decisions
contribute to plantar heel pain assessment reasoning
Record:
test name
side tested
result (positive / negative / unclear)
pain location
pain score (0–10)
standing or seated version used
symptom quality
toe extension tolerance
comparison side
irritability level
related findings
walking tolerance
interpretation notes
Ankle Dorsiflexion Test
Single Leg Balance Test
Calf Flexibility Assessment
Foot Posture Assessment
Hop Testing
Single Leg Calf Raise
What does the Windlass Test assess?
It assesses plantar fascia pain during big toe extension.
What is a positive Windlass Test?
Heel or arch pain during toe extension.
Does it diagnose plantar fasciitis?
No. It may suggest plantar fascia irritation but does not confirm diagnosis.
Can it be performed standing?
Yes. Weight-bearing and non-weight-bearing versions both exist.
Should it be used alone?
No. It should be combined with history and other foot assessments.
What does the Windlass Test assess?
Plantar fascia pain and tension sensitivity.
Does it confirm plantar fasciitis?
No. It only helps support assessment reasoning.
What does a positive result mean?
It may suggest plantar fascia irritation or heel pain sensitivity.
What does a negative result mean?
It may reduce suspicion of plantar fascia involvement.
Should it be used alone?
No. It works best with other foot and ankle assessments.
What is the main value of the test?
Helping identify whether plantar fascia loading reproduces familiar symptoms.
Goff, J. D., et al. (2011–2021). Diagnosis and treatment of plantar fasciitis. American Family Physician.
Tu, P., et al. (2020–2024). Plantar heel pain and plantar fascia assessment updates. Journal of Foot and Ankle Research.
Martin, R. L., et al. (2023). Heel pain—plantar fasciitis revision clinical practice guideline. Journal of Orthopaedic & Sports Physical Therapy.
