Spry Juncture, LLC
How to Evolve Gracefully
Flexor Carpi Ulnaris
Region
Origin & Insertion
['Origin: Medial epicondyle of humerus and olecranon of ulna', 'Insertion: Pisiform, hamate, base of 5th metacarpal']
Synergistic Muscles
['Flexor carpi radialis', 'Palmaris longus']
Joints
['Wrist', 'Elbow']
Primary Actions
['Wrist flexion', 'Ulnar deviation']
Nerve & Spinal Segment
Ulnar nerve
Brachial plexus; C7–T1
Interesting
Only wrist flexor innervated by ulnar nerve. [Moore's]
Reversal of Action
Pull elbow toward fixed hand in functional grip
Common Dysfunctions
Ulnar wrist pain, poor medial stabilization
How to Stretch
Extend elbow and wrist, ulnar deviation away.
Trigger Points
How to Strengthen
Ulnar deviation resistance exercises.
Concentric Action
Flex and adduct the wrist
Applications:
Stabilizes wrist in heavy grip and pushing tasks
Eccentric Action
Control wrist extension from ulnar-deviated position
Isotonic Action
Ulnar wrist curls with dumbbell
Related Conditions
['Ulnar neuritis', 'Golfer’s elbow']
Isometric Action
Hold wrist in ulnar flexion against resistance
Exercise Ideas
['Ulnar wrist curl', 'Wrist flexion hammer', 'Isometric grip holds']