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Brachiioradialis
Region
Origin & Insertion
['Origin: Lateral supracondylar ridge of humerus', 'Insertion: Styloid process of radius']
Synergistic Muscles
['Biceps brachii', 'Brachialis']
Joints
['Elbow']
Primary Actions
['Elbow flexion (most effective in mid-pronation)']
Nerve & Spinal Segment
Radial nerve
Brachial plexus; C5–C6
Interesting
Flexes best with neutral wrist. [Moore's]
Reversal of Action
Draw upper arm toward wrist
Common Dysfunctions
Weak neutral grip lifting, lateral forearm pain
How to Stretch
Extend elbow with wrist flexed and pronated.
Trigger Points
How to Strengthen
Neutral grip curls.
Concentric Action
Flex elbow in neutral grip
Applications:
Assists in elbow and wrist synergy; targeted in post-fracture grip recovery
Eccentric Action
Lower weight from hammer curl
Isotonic Action
Hammer curls, lever lifts
Related Conditions
['Radial tunnel syndrome', 'Tennis elbow']
Isometric Action
Hold dumbbell at 90° with neutral wrist
Exercise Ideas
['Hammer curls', 'Reverse curl', 'Cable rope curl']
Related Blogs
Images
Videos
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