SERRATUS ANTERIOR
• Origin
Ribs 1-8 or 9
• Insertion
Anterior surface of medial border of scapula
• Agonist(s)
- Pectoralis minor
- Subclavius
• Antagonist(s)
- Rhomboids
- Trapezius
• Function
Protracts and stabilizes the scapula, rotates the scapula superiorly
TRIGGER POINT(S)
• Location
Trigger points in the serratus anterior are typically located along the muscle's attachments to the ribs, particularly the lower ribs (ribs 6-9), near the mid-axillary line.
• Pain Referral Pattern
Pain often refers to the side of the chest, down the arm, and sometimes to the area below the scapula.
Pain may also wrap around the ribcage towards the front.
Pain Pattern
• Potential Causes
• Repetitive overhead activities or heavy lifting.
• Poor posture, especially with slouched shoulders.
• Trauma or direct impact to the ribcage.
• Chronic coughing or respiratory issues.
• Imbalance in shoulder and chest muscles.
• Prevention Tips
• Maintain proper posture and avoid prolonged slouching.
• Perform regular stretching and strengthening exercises for the chest and shoulder muscles.
• Avoid repetitive strain by using proper techniques and taking breaks.
• Address respiratory issues and practice deep breathing exercises.
• Use supportive equipment and proper form during overhead activities.