Participants between the ages of 25-45 who were diagnosed with Unilateral patellofemoral pain syndrome by the doctor will be included in the study. Also positive Clarke's test and patellar compression tests will be determined as inclusion criteria. The 45 participants will be randomly divided into three groups. Both groups will receive 2 weeks (5 sessions per week) of therapy. First group patients underwent High Intensity Laser Therapy (HILT) and exercises. Second group patients will be treated by transcutaneous electrical nerve stimulation(TENS), ultrasound (US) and exercise for 10 sessions. Also In the third group patients will be treated with ultrasound (US),interferential current stimulation and exercise. All groups receive the same exercise exercise protocol including muscle strengthening and flexibility training for 12 weeks. The outcomes will be pain intensity measured by visual analog scale (VAS) , knee flexion range of motion (FROM), timed up and go test (TUG),muscle strength measured with handheld dynamometer, Pressure Pain Threshold with an algometry and functionality of knee measured by the Lower extremity functional scale and Kujala patellofemoral questionnaire. Statistical analyzes will be performed to compare amounts at baseline, immediately after treatment, and after 12 weeks.
The aim of this study is to investigate the effectiveness of high-intensity laser therapy on pain and lower extremity function in the treatment of patellofemoral pain syndrome.