Overused (tight) Muscles
- Cervical extension: Upper trapezius, Levator scapulae
- Shoulder Adduction: Latissimus dorsi, Teres major, Pectoralis Major,
- Shoulder Internal Rotation: Subscapularis
- Scapular Protraction: Pectoralis Minor
Underused (weak) Muscles
- Cerfical flexors: Sternocleidomastoid, Scalenes
- Scapular Retraction / Depression: Middle Trapezius, Lower Trapezius, Rhomboids
- Shoulder External Rotation: Teres minor
Altered Joint Mechanics
Increases:
- Cervical extension
- Scapular protraction / elevation
Decreases
- Shoulder Extension
- Shoulder external rotation
Possible Injuries
- Headaches
- Biceps tendonitis
- Rotator cuff impingement
- Thoracic outlet syndrome
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