ERECTOR
SPINAE
• Origin
Sacrum, iliac crest, and spinous processes of the lumbar vertebrae
• Insertion
Ribs, transverse processes of the thoracic and cervical vertebrae, and the base of the skull
• Agonist(s)
- Gluteus maximus
(Hamstrings)
- Biceps Femoris
- Semitendinosus
- Semimembranosus
• Antagonist(s)
- Rectus abdominis
- Quadratus lumborum
• Function
Supports spine, extends back
TRIGGER POINT(S)
• Location
Trigger points can be found in the muscle bellies and tendinous areas of the muscles.
• Pain Referral Pattern
Pain may refer to the lower back, mid-back, upper back, and sometimes down to the buttocks and thighs.
It can cause aching, burning, or sharp pain along the spine, and may contribute to discomfort or restricted movement in the back and neck.
Pain Pattern
• Potential Causes
• Overuse or repetitive activities involving back extension, lifting, or prolonged standing.
• Poor posture, especially excessive lordosis or kyphosis.
• Muscle imbalances between the erector spinae and other back and core muscles.
• Trauma or injury to the back or spine.
• Prevention Tips
• Use proper techniques and form during lifting and back extension exercises to avoid overloading the erector spinae.
• Incorporate regular stretching and strengthening exercises for the back and core muscles.
• Ensure proper warm-up and cooldown routines before and after exercise.
• Maintain good posture and ergonomics during daily activities.
• Ensure balanced strength training to avoid muscle imbalances.
