Wrist ROM Guide

Wrist Flexion Range of Motion Measurement Guide

WristFlexionSagittal planeCustom in appUpdated 2026-09-27

Measurement Snapshot

MovementFlexion
PlaneSagittal plane
Primary MusclesFlexor carpi radialis, flexor carpi ulnaris, palmaris longus

There is no single value that establishes normality for every person or method. Record the setup and compare measurements in clinical context.

Wrist flexion ROM is central to hand therapy after distal radius fracture and carpal injury. Interpret with the opposite wrist and functional task demands.

Standardized Setup

Patient Position
Support the forearm on a table in pronation with the hand free past the edge so the wrist can flex without contact.
Stabilization
Stabilize the distal forearm so pronation, supination, or forearm lift does not add to the reading.
Landmarks
Use the lateral wrist near the triquetrum as the axis, the lateral forearm as the stationary reference, and the fifth metacarpal as the moving reference.

Step-by-Step Measurement

  1. Calibrate the neutral wrist start with the hand in line with the forearm.
  2. Flex the wrist through the available range while keeping the fingers relaxed.
  3. Stop at the true end range without letting the forearm lift.
  4. Record the value with active or passive status.

Common Measurement Errors

  • Clenching the fingers, which limits wrist flexion via tenodesis.
  • Letting the forearm lift off the support surface.
  • Deviating the wrist radially or ulnarly during flexion.

Custom Cobb Angle Pro Workflow

The app does not provide a named protocol for this movement. Use Custom as the body part, choose the movement, and apply your own clinical measurement method.

  1. In Range of Motion, choose Custom as the body part, then Flexion as the movement. The app does not provide a named Wrist Flexion protocol.
  2. Choose Photo, Camera, or Phone Sensor and use your own measurement setup. Custom measurements have generic in-app guidance rather than a reviewed movement-specific protocol.
  3. Record Wrist Flexion, side, position, and method in the case label or notes so the saved Custom measurement can be interpreted later.

References

  1. Norkin CC, White DJ. Measurement of Joint Motion: A Guide to Goniometry. 5th ed. F.A. Davis Company; 2016.
  2. Ryu J, Cooney WP, Askew LJ, et al. Functional ranges of motion of the wrist joint. J Hand Surg Am. 1991;16(3):409-419.

Frequently Asked Questions

How should wrist flexion measurements be interpreted?

Record the measured value with the side, patient position, method, and active or passive status. Compare repeat measurements made the same way and interpret them with the full clinical context; one value alone cannot establish normality or a diagnosis.

Why should the fingers stay relaxed during wrist flexion?

Clenching the fingers tightens the finger extensors and limits wrist flexion through tenodesis, producing an artificially small measurement.

How do you keep the forearm from affecting the reading?

Support the forearm on a table and stop the movement if it lifts, so the value reflects wrist motion rather than combined forearm and wrist movement.