Range of Motion: Shoulder Adduction

The Shoulder Adduction Test measures how far the arm can move across the midline of the body from a forward position. It is useful for tracking anterior/cross-body shoulder mobility and side-to-side differences.

Introduction

A client may report tightness or restriction when reaching across the body, hugging, putting on clothing or moving into cross-body positions during sport. The Shoulder Adduction Test provides a repeatable way to measure this movement.

The MAT article describes a seated or standing test with the arm straight in front of the body and thumb facing up. The client adducts the shoulder across the midline, and the MAT source lists 10–20 degrees as the practical reference range.  

Quick Summary

Test name: Shoulder Adduction Test
Purpose: Assess shoulder adduction ROM
What it assesses: Ability to move the arm across the midline
Equipment: Measurz inclinometer
Key finding: Shoulder adduction angle in degrees
Best used with: Horizontal adduction, shoulder flexion, shoulder internal rotation, posterior shoulder mobility and upper-body function tests
Key limitation: Trunk rotation and scapular movement can affect the result

What Is the Shoulder Adduction Test?

The Shoulder Adduction Test measures how far the arm can move across the body from the starting position.

Why It Is Used

It is used to assess cross-body shoulder movement, compare sides and monitor progress across sessions.

What It Measures

It measures shoulder adduction ROM in degrees. It does not diagnose posterior shoulder tightness, AC joint symptoms or shoulder pathology.

Active vs Passive Range of Motion

Active ROM is measured when the client moves the arm. Passive ROM may be measured if assisted. Record the method.

Who It Is Useful For

Throwers, swimmers, gym clients, contact sport athletes, desk workers and clients with cross-body shoulder mobility goals.

Equipment Required

Measurz inclinometer, treatment space, Measurz app and notes for side, pain, symptoms, active/passive method and trunk rotation.

Step-by-Step Protocol

Position the client seated or standing with the arm straight in front of the body and thumb facing up. Ask the client to move the arm across the midline as far as possible. Save the result once maximal ROM is achieved or pain/discomfort begins.  

Scoring and Interpretation

Record adduction ROM in degrees. The MAT source lists 10–20 degrees as the practical reference range.  

Interpret with symptoms, horizontal adduction, internal rotation, scapular motion, trunk rotation and side comparison.

Normative Data, Benchmarks or Reference Values

Evidence level: Level 2, related or closest available reference values.

Use 10–20 degrees as a practical MAT reference. Baseline and side comparison are often more useful than the reference range alone.

Reliability and Validity

Recent work comparing goniometric tools highlights that device choice, standardisation and measurement error influence ROM interpretation. This is especially important for cross-body movements where trunk and scapular compensation can change the score.  

Common Errors and Testing Limitations

Common errors include trunk rotation, shoulder shrugging, elbow bending, changing thumb position and interpreting adduction ROM as a stand-alone shoulder diagnosis.

Practical Applications

Use this test to monitor cross-body shoulder ROM, compare sides and add context to horizontal adduction, throwing, swimming and upper-body mobility tasks.

How to Record This in Measurz

Record side, adduction angle, active/passive method, pain score, symptom location, trunk rotation, scapular movement, starting position and comparison with the other side.

Related Tests or Internal Linking Suggestions

Shoulder Horizontal Adduction Test
Shoulder Internal Rotation 90° Test
Shoulder Flexion Test
Shoulder Extension Test
Posterior Shoulder Endurance Test
Throwing Assessment

FAQs

What does the Shoulder Adduction Test measure?

It measures how far the arm can move across the body from the starting position.

What is a practical reference range?

The MAT source lists 10–20 degrees.  

Is this the same as horizontal adduction?

No. The starting position and measurement method differ. Record them separately.

What compensation should be avoided?

Trunk rotation, shoulder shrugging and elbow bending should be minimised or recorded.

Key Takeaways

The Shoulder Adduction Test measures cross-body adduction ROM.
Use the same starting position each time.
Record symptoms and compensation.
Use 10–20 degrees as a practical guide.
Track side comparison in Measurz.

References

Kiatkulanusorn, S., et al. (2023). Analysis of the concurrent validity and reliability of five common clinical goniometric devices. Scientific Reports, 13, 20915.

Shimizu, H., et al. (2022). Validity and reliability of a smartphone application for self-measurement of active shoulder range of motion in a standing position among healthy adults. JSES International, 6(4), 675–682.

Sinden, K., et al. (2021). The reliability of the Microsoft Kinect and ambulatory sensor-based motion tracking devices to measure shoulder range of motion: A systematic review. Sensors, 21(24), 8186.