Comparative Effects of McGill and McKenzie Exercises in Low Back Pain

Inclusion Criteria: * Both genders. * Patients between 20-40 years. * At least 6 months of history of chronic mechanical low back pain. * Negative Lasegue's Test. * Negative Slump Test. * Patient presenting with NPRS values of above 1 and equal to or less than 6. * ODI score from 5-24, with the patient showing minimal to moderate disability. * Patient showing restricted lumbar range of motion in any direction of flexion, extension, and lateral flexion. * Participants must demonstrate an extension directional preference during clinical examination (For the safety purpose of the patients) Exclusion Criteria: * Lumbar radiculopathy. * Previous record showing Trauma or accident. * Any previous surgical record of Lumbar Spine Surgery. * Acute or Subacute low back pain. * History of spinal osteoporosis. * Vertebral Fractures. * Tumors and active infections. * Diagnosed psychological disorders. * Any spinal deformity * Participants who do not show directional preference towards extension