• Origin

Occipital bone, ligamentum nuchae, and the spinous processes of the cervical and thoracic vertebrae.

• Insertion

Clavicle, acromion, and spine of the scapula.

• Agonist(s)

- Latissimus dorsi

- Pectoralis major

- Deltoids

• Antagonist(s)

- Rhomboids

- Levator scapulae

• Function

Moves scapula, supports arm

TRIGGER POINT(S)

• Location

Trigger points can be found along the length of the muscle, particularly in the upper portion near the neck, the middle portion between the shoulder blades, and the lower portion near the mid-back.

• Pain Referral Pattern

Pain may refer to the neck, shoulders, and upper back, and can sometimes radiate to the head, causing headaches.

It can cause aching, burning, or sharp pain in the upper back, neck, and shoulders, and may contribute to discomfort or restricted movement in the neck and shoulders.

• Potential Causes

• Overuse or repetitive activities involving shoulder elevation, neck extension, or heavy lifting.

• Poor posture, especially forward head posture or rounded shoulders.

• Muscle imbalances between the trapezius and other neck and shoulder muscles.

• Stress and tension, leading to muscle tightness.

• Trauma or injury to the neck, shoulders, or upper back area.

• Prevention Tips

• Use proper techniques and form during exercises involving shoulder and neck movements to avoid overloading the trapezius.

• Incorporate regular stretching and strengthening exercises for the neck and shoulder muscles.

• Ensure proper warm-up and cooldown routines before and after exercise.

• Maintain good posture and ergonomics during daily activities.

• Manage stress through relaxation techniques to avoid muscle tension.

• Ensure balanced strength training to avoid muscle imbalances.