Trigger points can develop in these muscles, causing pain and tenderness in the forearm, wrist, and hand, as well as referred pain in other areas.
Both muscles are responsible for flexing the wrist, but the flexor carpi radialis also abducts the hand while the flexor carpi ulnaris adducts the hand.
Trigger points can be caused by overuse, injury, poor posture, stress, and muscle imbalances.
The flexor carpi radialis is located on the lateral side (thumb side) of the forearm and attaches to the base of the second and third metacarpal bones. It is responsible for flexing the wrist and abducting (moving away from the midline of the body) the hand.
The flexor carpi ulnaris, on the other hand, is located on the medial side (pinky finger side) of the forearm and attaches to the pisiform bone in the wrist and the base of the fifth metacarpal bone. It is responsible for flexing the wrist and adducting (moving towards the midline of the body) the hand.
In the flexor carpi ulnaris muscle, trigger points may cause pain and tenderness in the medial (pinky finger side) of the forearm, wrist, and hand. The pain may also radiate up to the elbow and down to the fingers.
In the flexor carpi radialis muscle, trigger points may cause pain and tenderness in the lateral (thumb side) of the forearm, wrist, and hand. The pain may also radiate up to the elbow and down to the thumb.
Trigger points can be caused by a variety of factors, including overuse, injury, poor posture, stress, and muscle imbalances. Treatment for trigger points in the flexor carpi ulnaris and flexor carpi radialis muscles may include massage, stretching, strengthening exercises, and other therapies such as dry needling.
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