Effects of Lumbar Stabilization Exercises Versus Muscular Chain Therapy in Patients With Mechanical Chronic Low Back Pain

The goal of this randomized controlled trial is to compare the effectiveness of lumbar stabilization exercises and muscular chain therapy on reducing pain intensity and functional disability in patients with mechanical CLBP. * Participants will be randomly assigned to two groups: * Group A: Lumbar stabilization exercises * Group B: Muscular chain therapy (posterior sagittal muscle chain) Outcomes will be assessed at baseline and on week 6 to evaluate which exercise program is more effective in reducing pain and improving functional outcomes.