Multifidus Contents Referred pain pattern Multifidus - pain pattern Muscle type Postural Shortens when overactivated Symptoms Chronic instability of spine Tenderness and pain along spine Reduced flexion of spine Restricted rotation Videos Short version http://myoreflex.review/wp-content/uploads/2012/03/Erector-spina-short.mp4 Detailed version http://myoreflex.review/wp-content/uploads/2012/03/Erector-spina-medial-part-detailed.mp4