Today’s video looks at rehab exercises for quadratus lumborum or QL muscle pain. The quadratus lumborum muscle is a low back muscle that runs from the iliac crest (top side of pelvis) to the 12th rib and the transverse processes (lateral projections) of the lumbar vertebrae.

The quadratus lumborum acts to move the spinal column through extension and ipsilateral (same side) sidebend and is considered a major postural muscle as it also acts to stabilize the low back and pelvis in the frontal plane of motion.Discomfort in the quadratus lumborum region is associated with many cases of low back pain and is typically reproduced with palpation of the muscle between the 12th rib and pelvic crest.

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