Comparing the Outcome of Electrical Stimulation and Physical Therapy in Patellofemoral Pain Syndrome

Inclusion Criteria: * Bilateral/unilateral anterior knee pain for more than 3 moths * Age of patient 18 to 40 years * At least 3 of the 4 following criteria present: pain associated with prolonged sitting with knees bend, pain with going downstairs, kneeling and squatting or sports activities * No h/o injury * No h/o surgery to the knee Exclusion Criteria: * H/o patellar dislocation or subluxation * Associated bursitis, tendinitis in periarticular area * Ligamentous problems * Intra-articular pathology * Pregnancy (patient reported pregnancy, in case of doubt patient will be referred to their OBG/GYN physician to exclude the pregnancy) * H/o knee surgery * Oral or intraarticular administration of steroid medication with in last 3 months * Patients with implanted devices like pacemaker