Effects of Post Isometric Relaxation in Patients With Quadratus Lumborum Syndrome

This randomized controlled trial will be conducted at Ittefaq Hospital Lahore over a4‐month period. A sample size of 32 participants, aged 20 to 45 will be selected usingnon‐probability convenient sampling. Informed consent will be obtained from allparticipants. Participants will be divided into two groups: Group A will receivePost‐Isometric Relaxation in addition to standard physical therapy, while Group B willreceive only standard physical therapy which includes a hot pack, TENS, core stabilityexercises and Maitland's mobilization. Outcome measures including the Numeric pain ratingscale (NPRS), McGill's torso muscular endurance test, Oswestry disability index (ODI)urdu version and Lateral flexion test for mobility will be assessed at baseline and after4 weeks. Inclusion criteria include positive hip hike and lateral flexion tests, lumbarpain with an NPRS score of >3 to ≤7, and an ODI score of ≥5 to ≤24. Exclusion criteriainclude chronic pain, spondylolisthesis and previous spinal surgeries. Data will beanalyzed using IBM SPSS 25.0.