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.

Introduction

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.

Quick Summary

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

What Is the Windlass Test?

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.

Why It Is Used

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

What It Assesses

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.

Who It Is Useful For

This test may be useful for:

• exercise professionals
• rehabilitation practitioners
• running coaches
• movement assessment professionals
• individuals with heel or arch pain

When to Use This Test

Use when there is:

• heel pain during walking or running
• morning foot stiffness
• pain during push-off
• tenderness around the plantar fascia region

When Not to Use or When to Be Cautious

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

Equipment Required

Treatment table or standing space
Pain scale
Measurz recording workflow

Step-by-Step Protocol / Practice

Setup

The test may be performed in standing or sitting depending on symptom irritability and weight-bearing tolerance.

Client Position

Standing version:

• client stands naturally
• foot flat on the ground

Non-weight-bearing version:

• client sits with foot relaxed

Examiner/Professional Position

Position beside the foot being tested.

Hand Placement

Stabilise the foot with one hand while extending the big toe with the other.

Stabilisation

Maintain foot position and avoid excessive ankle movement.

Movement or Force Direction

Passively extend the big toe into dorsiflexion.

Observe:

• heel pain
• arch pain
• symptom location
• symptom intensity

Instructions

Ask the client to:

• remain relaxed
• report familiar symptoms
• describe pain location and intensity

Positive Finding

A positive Windlass Test may include:

• heel pain reproduction
• medial arch pain
• familiar plantar fascia symptoms during toe extension

Negative Finding

A negative finding involves:

• no symptom reproduction
• tolerance to toe extension
• no plantar fascia discomfort

Stopping Criteria

Stop if:

• pain becomes severe
• guarding limits movement
• symptoms become highly irritable

Safety Notes

Avoid aggressive toe extension in highly painful presentations.

Compare both sides where appropriate.

Positive and Negative Test Interpretation

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.

Sensitivity, Specificity and Diagnostic Accuracy

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 and Validity

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 and Limitations

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

Practical Applications

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

How to Record This in Measurz

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

Related Tests / Internal Links

Ankle Dorsiflexion Test
Single Leg Balance Test
Calf Flexibility Assessment
Foot Posture Assessment
Hop Testing
Single Leg Calf Raise

FAQs

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.

Key Takeaways

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.

References

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.