Rectus Abdominus

Origin

• Pubis Symphysis

Insertion

• Ribs 5-7

Isolated Function

• Spinal flexion

Integrated Function

• Decelerates hip extension
• Decelerates shoulder flexion, horizontal shoulder extension
• Decelerates anterior pelvic tilt
• Attaches to the external obliques, internal obliques, and transverse abdominis to create synergistic actions in three planes of motion
• Does not function in isolation

Weakness can cause

• Pelvic dysfunction
• Pelvic dysfunction
• Shoulder girdle dysfunction