Range of Motion: Wrist Radial Deviation

The Wrist Radial Deviation Test measures how far the hand moves toward the thumb side of the forearm. It can be assessed actively or passively using a goniometer, inclinometer, smartphone tool or consistent ROM workflow. The result helps compare sides, monitor symptoms and add context to gripping, lifting, racquet sports, stick sports, weight-bearing and upper-limb strength tasks.

Introduction

A client may report difficulty controlling the wrist during gripping, racquet strokes, lifting, push-up positions or tool use. Another client may show one wrist moving less toward the thumb side, especially when loading the hand or holding equipment.

The Wrist Radial Deviation Test gives a simple way to quantify side-to-side wrist movement. The result is most useful when the forearm, finger position, device placement, pain and compensation are recorded consistently.

Quick Summary

Test name: Wrist Radial Deviation Test
Purpose: Measure wrist radial deviation range of motion
Movement: Hand moving toward the thumb side of the forearm
Joint/body region: Wrist
Plane: Frontal/coronal plane
ROM type: Active ROM, passive ROM or both
Score: Degrees of wrist radial deviation
Equipment: Goniometer, inclinometer, smartphone ROM tool or Measurz ROM workflow
Best used with: Wrist ulnar deviation, wrist flexion, wrist extension, grip strength, racquet sport, lifting and weight-bearing hand assessments
Key limitation: Forearm position, finger position and compensatory wrist flexion/extension can affect the result

What Is the Wrist Radial Deviation Test?

The Wrist Radial Deviation Test measures movement of the hand toward the radial or thumb side of the forearm. It is sometimes called radial abduction of the wrist.

It may be performed with the forearm supported on a table or in another standardised position. The test should be recorded separately from wrist flexion, extension and ulnar deviation.

Why It Is Used

The test is used to quantify radial-side wrist movement, compare sides and monitor change over time.

It may help inform:

Grip and hand function monitoring
Racquet, bat or stick sport movement
Tool-use and work-task assessment
Upper-limb strength exercise setup
Weight-bearing hand positions
Pain and symptom tracking
Progress across sessions

What It Measures

The test measures wrist radial deviation ROM in degrees.

It may be influenced by:

Radiocarpal and midcarpal movement
Forearm position
Finger position
Wrist flexion or extension compensation
Pain or symptoms
Grip tension
Hand dominance
Device placement
Professional stabilisation

It does not explain the cause of reduced radial deviation by itself.

Active vs Passive Range of Motion

Active wrist radial deviation measures how far the client can move the hand toward the thumb side using their own control.

Passive wrist radial deviation measures available range when the professional guides the hand.

Active and passive values should be recorded separately because they may differ due to pain, control, strength, symptoms or available joint range.

Who It Is Useful For

This test may be useful for gym clients, manual workers, racquet sport athletes, golfers, hockey players, climbers, musicians, desk workers and anyone where wrist side movement affects training, work or daily function.

Equipment Required

Goniometer, inclinometer or smartphone ROM tool
Table or supported surface
Pain scale
Measurz for recording ROM, pain and symptoms
Optional towel support
Optional comparison side notes

Step-by-Step Protocol or How to Apply This in Practice

Starting position

Position the client sitting with the forearm supported on a table.

Client position

Place the forearm in pronation unless another method is selected. The wrist starts in neutral with the hand aligned with the forearm.

Professional position

Sit or stand beside the tested wrist with clear access to hand and forearm landmarks.

Body/joint setup

Keep the fingers relaxed and the wrist neutral before starting. Avoid gripping unless the selected protocol requires it.

Stabilisation

Stabilise the distal forearm to minimise forearm movement and avoid compensatory wrist flexion or extension.

Movement instruction

For active ROM, ask the client to move the hand toward the thumb side as far as comfortably possible.

For passive ROM, gently guide the wrist toward radial deviation until the first firm endpoint, symptom limit or compensation threshold.

Measurement landmarks

For goniometry, commonly align the axis over the capitate or dorsal wrist region, stationary arm along the dorsal midline of the forearm and moving arm along the dorsal midline of the third metacarpal.

Inclinometer or device placement

Place the inclinometer or smartphone consistently on the dorsum of the hand, a held reference object or selected hand segment according to your protocol. Record placement.

What to ask

Ask about wrist pain, thumb-side symptoms, forearm tightness, stiffness, pinching, symptom location and whether symptoms are familiar.

Stopping rules

Stop if pain increases sharply, symptoms spread, the client guards or compensation dominates the movement.

What to record

Record active/passive method, side, degrees, pain score, symptom location, forearm position, finger position, device used and compensation.

Number of trials

One to three trials may be used. Record best, average or selected trial consistently.

Retest consistency

Use the same forearm position, finger position, device, landmarks, endpoint and scoring method each session.

Scoring and Interpretation

The score is recorded in degrees.

A higher value means more radial deviation under the tested setup. A lower value means less radial deviation compared with baseline, the other side or related upper-limb findings.

Interpretation is stronger when paired with pain score, symptom location, active/passive comparison, ulnar deviation, wrist flexion, wrist extension, grip strength, weight-bearing tolerance, racquet sport tasks, stick sport tasks or work demands.

The result does not explain the cause of reduced or painful radial deviation by itself.

Reliability and Validity

Wrist deviation ROM is sensitive to hand and forearm position, so consistent setup is essential. A 2022 study comparing wrist ROM measurement using a standard goniometer, smartphone and inertial measurement unit glove included radial and ulnar deviation and highlights the growing use of digital tools for wrist ROM measurement.  

A 2025 systematic review found smartphone sensor and photography methods for hand and upper-extremity ROM are promising, but reliability and validity depend on the joint, movement, application, device and protocol.  

Common Errors and Testing Limitations

Common errors include moving the forearm, changing finger position, allowing wrist flexion or extension, poor landmarking, forcing passive range, not recording symptoms and comparing active/passive values without labelling them.

Limitations include pain, swelling, guarding, device variation, hand dominance, grip tension, compensation and measurement error.

Practical Applications

Use wrist radial deviation ROM to monitor wrist mobility, compare sides and add context to gripping, lifting, racquet sports, golf, stick sports, push-ups, planks, tool use and upper-limb strength work.

How to Record This in Measurz

In Measurz, record baseline wrist radial deviation ROM in degrees using the goniometer, inclinometer or chosen device. Note active or passive method, side tested, pain score, symptom location, forearm position, finger position, test position, device used and compensation.

Track progress across sessions and add related wrist ulnar deviation, flexion, extension, grip strength, push-up, plank, racquet sport, stick sport or work-task findings.

Related Tests or Internal Linking Suggestions

Wrist Ulnar Deviation Test
Wrist Flexion Test
Wrist Extension Test
Elbow Pronation Test
Elbow Supination Test
Grip Strength Test
Push-Up Test
Plank Test

FAQs

What does the Wrist Radial Deviation Test measure?

It measures how far the wrist moves toward the thumb side of the forearm.

Should radial deviation be measured actively or passively?

Both can be useful. Active ROM reflects controlled movement, while passive ROM reflects available range when guided.

Why does forearm position matter?

Forearm position changes hand alignment and can affect how radial deviation is measured.

What should be recorded?

Record side, degrees, active/passive method, pain, symptoms, forearm position, finger position and compensation.

How should wrist radial deviation be tracked?

Use the same forearm position, finger position, device, landmarks and endpoint each session.

Key Takeaways

Wrist radial deviation ROM measures movement toward the thumb side.
Forearm, hand and finger position should be standardised.
Active and passive results should be recorded separately.
Measurz should capture degrees, side, pain, method, position and compensation.

References

Clarkson, H. M. (2020). Musculoskeletal assessment: Joint range of motion, muscle testing, and function (4th ed.). Wolters Kluwer.

Shafiee, E., Milani Zadeh, S., MacDermid, J. C., Langohr, G. D., Johnson, J., & Lu, S. (2025). Reliability and validity of using smartphone sensor and photography to measure hand and upper extremity joint range of motion: A systematic review. Journal of Hand Therapy. Needs verification.

Wang, C., et al. (2022). Comparison of the wrist range of motion measurement between smartphone, goniometer and inertial measurement unit glove. Applied Sciences, 12(7), 3418. Needs verification.