RECTUS
ABDOMINIS
• Origin
Pubic crest and pubic symphysis
• Insertion
Xiphoid process and costal cartilages of ribs 5-7
• Agonist(s)
- None
• Antagonist(s)
- Erector spinae
- Quadratus lumborum
- External and Internal obliques
• Function
Flexes vertebral column; compresses abdomen
TRIGGER POINT(S)
• Location
Trigger points can be found along the length of the muscle, particularly in the midline.
• Pain Referral Pattern
Pain may refer to the anterior abdomen and sometimes to the lower back.
It can cause aching, burning, or sharp pain along the midline of the abdomen, and may contribute to discomfort or restricted movement in the lower back and trunk.
Pain Pattern
• Potential Causes
• Overuse or repetitive activities involving trunk flexion, such as sit-ups, crunches, or heavy lifting.
• Poor posture, especially excessive lordosis or hyperextension of the lumbar spine.
• Muscle imbalances between the rectus abdominis and other abdominal and back muscles.
• Trauma or injury to the abdominal or lower back area.
• Prevention Tips
• Use proper techniques and form during abdominal exercises to avoid overloading the rectus abdominis.
• Incorporate regular core strengthening and stabilization exercises.
• 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.
