Effect of Muscle Energy Techniques on Functional Abilities in Patients With Discogenic Unilateral Sciatica

Inclusion Criteria: * History of sciatica for more than 12 weeks or has at least 3 episodes of intermittent sciatica, each last for morethan 1 week eitheraccompanied with low back pain during the 3 months before thestudy. Medically and radiologically diagnosed as discogenic chronic sciatica with mild to moderate disability according to modified Rolland and Morris scale. * Both males and females, aged from 25 to 40 years old. * Be able to understand and follow the instructions during testing and treatment procedures Exclusion Criteria: * Fracture of pelvis, spine or lower extremities. * Hospitalization for severe trauma. * Peripheral neuropathy of diabetes or any other autoimmune disease. * Systematic autoimmune disease such as rheumatoid arthritis, systematic lupus * People with red flags such as cancer or severe osteoporosis. * Symptoms provoked while doing active hip joint extension and abduction. * Previous surgery to the lumbar spine, abdomen, pelvis, or hip. * Any contraindication for exercise therapy (e.g. uncontrolled hypertension, previous myocardial infarction, cardiovascular disease, peripheral vascular disease, respiratory disorders). * Any pain originated because of SI pathology. * Menstruation during testing days. * Individuals incapable of understanding and answering the Questionnaire.