Immediate effect of muscle energy technique on chronic non-specific low back pain with diaphragm dysfunction - Single group pre-post design.

Background: This study aims to determine the effectiveness of the Muscle Energy Techniques (MET) to the Quadratus lumborum (QL) and the facilitated psoas traction in pain and disability in non-specific chronic low back pain (NSCLBP) patients who have a failed diaphragm test.

Method: Fifty NSCLBP patients aged between 18 and 58 years, presenting with tight psoas major, QL and failed diaphragm test were included. The MET to QL and facilitated psoas traction was administered on alternate days for a total of three sessions.