The Weight-Bearing Plantar Flexion Test assesses ankle plantar flexion in a functional loaded position, commonly through a heel-rise style movement. Direct evidence for the exact MAT Weight-Bearing Plantar Flexion Test is limited, but closely related research supports the Functional Heel-Rise Test as a reliable weight-bearing measure of active ankle plantar flexion range.
Ankle plantar flexion is important for push-off, running, jumping, hopping, calf raise performance, landing mechanics and many sport-specific tasks. Traditional plantar flexion ROM is often measured non-weight-bearing, but many functional tasks require plantar flexion under load.
The Weight-Bearing Plantar Flexion Test provides practical information about how the ankle moves when the client is supporting body weight.
Test name: Weight-Bearing Plantar Flexion Test
Category: Ankle ROM / functional heel-rise assessment
Primary score: Plantar flexion angle, heel-rise height or qualitative range
Best use: Functional ankle plantar flexion monitoring and side-to-side comparison
Key limitation: Direct exact-test evidence is limited; related heel-rise evidence should be labelled as related evidence.
The test assesses plantar flexion in a weight-bearing position, usually by observing or measuring the heel-rise movement. The MAT article describes the test as assessing ankle mobility and plantar flexion in a weight-bearing context.
Depending on the setup, scoring may include:
Heel-rise height
Plantar flexion angle
Ability to reach full available range
Side-to-side comparison
Pain, stiffness or compensation
The test may be used to assess:
Functional ankle plantar flexion range
Heel-rise control
Push-off capacity context
Side-to-side mobility difference
Baseline and retest change
Functional ankle ROM for running, jumping and calf raise tasks
The test may reflect:
Weight-bearing ankle plantar flexion range
Calf and foot control
Heel-rise quality
Forefoot loading tolerance
Balance and postural control
Symptom response under load
It does not directly measure maximal calf strength, Achilles tendon structure or calf endurance unless a repetition or force-based component is added.
The test may be useful for:
Runners
Jumping athletes
Field and court sport athletes
Gym clients
Dancers or athletes needing plantar flexion range
Clients monitoring ankle mobility
It may need modification if the client cannot tolerate heel-rise loading.
Flat non-slip surface
Wall or rail for light balance support
Optional measuring tape or ruler for heel-rise height
Optional Measurz AR measurement for heel-rise height or setup
Optional Measurz inclinometer for plantar flexion angle
Optional Measurz stopwatch, metronome or rep counter if combined with endurance testing
MAT tools such as Anker, Gripper or Muscle Meter for related plantar flexion strength testing
Measurz/MAT platform for side, range, symptoms, compensations and retest comparison
Client stands on a flat, non-slip surface.
Light fingertip support may be used for balance only.
Client rises onto the ball of the foot, moving into plantar flexion.
The professional measures or observes maximum controlled heel-rise position.
Record heel-rise height, angle or qualitative score.
Repeat on both sides if using a single-leg version.
Record symptoms, balance strategy and compensations.
Possible scoring options:
Plantar flexion angle in degrees
Heel-rise height in centimetres
Side-to-side difference
Pain or stiffness response
Quality of heel rise
Balance support required
Greater heel-rise height or angle generally suggests greater functional plantar flexion range, but interpretation should consider foot structure, toe extension tolerance, balance and strength.
Formal normative data for the exact MAT Weight-Bearing Plantar Flexion Test are limited.
Related reference values: Traditional ankle plantar flexion ROM is often cited around 40–50 degrees, but this is usually from non-weight-bearing goniometric testing and should not be directly applied to a loaded heel-rise test.
Practical field guidance only:
Compare left and right sides
Compare baseline and retest results
Record whether full heel rise is achieved with control
Note symptoms, stiffness or compensation
Use the same measurement method each time
Exact-test reliability for this MAT-specific version is limited. However, the Functional Heel-Rise Test has shown good reliability for assessing weight-bearing plantar flexion active ROM, and newer instrumented plantar flexion testing has demonstrated excellent reliability for plantar flexion force measurement.
This evidence should be treated as closely related evidence, not direct validation of every weight-bearing plantar flexion protocol.
Common errors include:
Using the hands to push upward
Losing balance
Not measuring heel height consistently
Comparing double-leg and single-leg results directly
Not recording foot position
Interpreting the test as calf strength without force or repetition data
Ignoring toe extension, forefoot discomfort or symptoms
The test can help professionals:
Monitor ankle plantar flexion mobility
Compare sides
Track heel-rise quality
Support running, jumping and calf raise assessment
Combine ankle ROM findings with calf raise endurance, ankle dorsiflexion and plantar flexion strength testing
Record:
Test name: Weight-Bearing Plantar Flexion Test
Side tested
Double-leg or single-leg version
Plantar flexion angle or heel-rise height
Balance support
Symptoms
Pain score
Compensation notes
Retest date
Use Measurz AR measurement for heel height/setup, Measurz inclinometer for angle, and notes for symptoms and movement quality.
It measures ankle plantar flexion in a loaded functional position, often through a heel-rise movement.
No. This test focuses on range or movement quality. Calf raise endurance counts repeated heel raises.
Exact-test norms are limited. Side-to-side and baseline comparison are usually most useful.
Yes. Measurz can record angle, heel-rise height, side, symptoms and retest notes.
The test assesses functional weight-bearing plantar flexion.
Direct exact-test evidence is limited.
Related heel-rise research supports loaded plantar flexion measurement.
It should not be interpreted as isolated calf strength.
Measurz can record range, height, symptoms and progress.
Ross, M. D., et al. (2018). The reliability of a novel heel-rise test versus goniometry to assess plantarflexion active range of motion. International Journal of Sports Physical Therapy, 13(1), 19–27.
Shields, C. A., et al. (2024). Excellent reliability for an instrumented test of ankle plantarflexion force. International Journal of Sports Physical Therapy.
