rug.ac.be Objectives—To determine the effect of different training schedules on the cross sectional area (CSA) of the lumbar multifidus muscle in patients with chronic low back pain. Methods—Each of ...

Muscle strength tests showed that m. quadratus lumborum and m. gluteus medius on the convex side of the spinal curvature appeared to be weaker compared to concave side, and m. erector spine lumbalis ...