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Extensor Carpi Radialis Longus

Region

Origin & Insertion

['Origin: Lateral supracondylar ridge of humerus', 'Insertion: Base of 2nd metacarpal']

Synergistic Muscles

['ECRB', 'Extensor digitorum']

Joints

['Elbow', 'Wrist']

Primary Actions

['Wrist extension', 'Radial deviation']

Nerve & Spinal Segment

Radial nerve

Brachial plexus; C6–C7

Interesting

Active during gripping. [Clinically Oriented Anatomy]

Reversal of Action

Lift forearm toward hand

Common Dysfunctions

Lateral elbow pain, weak wrist extension with radial deviation

How to Stretch

Flex wrist and ulnar deviate with elbow extended.

Trigger Points

How to Strengthen

Wrist extension with radial bias.

Concentric Action

Extend and abduct wrist

Applications:

Commonly inflamed in lateral epicondylitis (tennis elbow)

Eccentric Action

Control return from wrist extension

Isotonic Action

Wrist extensions with dumbbell

Related Conditions

['Tennis elbow', 'Radial tunnel syndrome']

Isometric Action

Maintain wrist in neutral or extended position under load

Exercise Ideas

['Wrist curls reverse', 'Radial wrist lifts', 'Hammer grip extensions']

Related Blogs

Images

Videos

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