Origin
Iliac crest
Insertion
12th rib, lumbar vertebrae
Blood supply
Lumbar arteries, subcostal artery, iliolumbar artery
Nerve supply
Subcostal, ilioinguinal and iliohypogastric nerves
Action
The muscle helps us to stand erect, to bend the trunk sideways and to stabilize the lower back.
Disease/Injury
Dysfunction of the quadratus lumborum dysfunction can produce pain in the hip, pelvis and lower back region.
Muscle Exercise
To stretch and strengthen, you can do exercises like standing stretch, side plank exercises. You can also perform ‘Parighasana’ to make your muscle strong.
Interesting Facts
The quadratus lumborum is also known as the ‘hip hiker’ muscle.
