Name of test

Forearm extension

What it tests

Triceps brachii

How to do it

With the patient supine, flex the shoulder and the elbow. Push down on the wrist as the patient resists with triceps activity.

The normal response

Grade 5 strength. The examiner is unable to break the triceps strength.

What it means if not normal


The triceps brachii is innervated by the radial nerve (C6-C8).


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