• The muscle energy technique is a manual therapy approach that utilizes active muscle contractions to help reduce pain and improve musculoskeletal function.
• The quadratus lumborum muscle, a deep muscle situated in the lower back, plays a crucial role in stabilizing the spine, assisting with posture, and facilitating movements, such as lateral bending and extension.
• Muscle energy technique has shown promise in addressing low back pain by promoting muscle relaxation, enhancing range of motion, and reducing discomfort and pain in the affected area. 

This study examined the effects of a therapy called muscle energy technique (MET) on people with chronic low back pain who had difficulty moving from side to side. MET is a gentle manual therapy to relax muscles, reduce pain, and improve the ability to move. A total of 108 individuals were divided into two groups through a random selection process. One group received conventional physiotherapy, while the other group received both physiotherapy and MET. We measured pain levels and the ability to move before and after the treatments. Both groups experienced less pain and better movement after the treatment. The MET group had a greater improvement in movement compared to the control group. The findings indicated that combining MET with physiotherapy can significantly improve low back pain and the ability to move in people with chronic low back pain and limited side-to-side movement.