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Anconeus

Region

Origin & Insertion

['Origin: Lateral epicondyle of humerus', 'Insertion: Olecranon and posterior ulna']

Synergistic Muscles

['Triceps brachii']

Joints

['Elbow']

Primary Actions

['Elbow extension', 'Stabilizes elbow joint']

Nerve & Spinal Segment

Radial nerve

Brachial plexus; C7–C8

Interesting

Assists in fine-tuning elbow extension. [Gray's Anatomy]

Reversal of Action

Support forearm lift with elbow stable

Common Dysfunctions

Instability in terminal elbow extension, subtle elbow locking

How to Stretch

Elbow flexion with forearm pronation.

Trigger Points

How to Strengthen

Lockout holds and resistance extension.

Concentric Action

Assist elbow extension

Applications:

Provides elbow joint stability in fine motor tasks

Eccentric Action

Control elbow return from extension

Isotonic Action

Low load triceps extension or plank hold

Related Conditions

['Elbow hyperextension', 'Olecranon bursitis']

Isometric Action

Stabilize elbow in extension

Exercise Ideas

['Triceps lockout press', 'Elbow push holds', 'Forearm plank with push']

Related Blogs

Images

Videos

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