The QL or Quadratus Lumborum can present in a multitude of symptoms often mimicking other causes.
How do I strengthen my psoas muscles? Here is a list of my favorite psoas strengtheners.
Sitting causes the psoas muscles to become weak and tight. Typical treatment options fail to address the real issue.
Muscle tightness and muscle weakness are major causes of low backspin that can be prevented with flexibility and strength work. It only takes a few minutes per day.