Efficacy Analysis in Long Term of Radiofrecuency Combined vs. T.E. in the Treatment of Patellofemoral Pain Syndrome.

The present study aims to promote research in the field of Physiotherapy, focusing on a health problem of maximum relevance, such as patellofemoral pain syndrome. Although these treatments seem to be based on theoretical reasoning, the evidence for the efficacy of these interventions is not well established. Therefore, we select from among all the therapeutic tools available in physiotherapy, a procedure of therapeutic physical exercise. Main objectives: To know the efficacy of a therapeutic physical exercise protocol in the reduction of pain and the improvement of functional disability in patients with patellofemoral pain syndrome (PFPS). Secondary objectives: * Quantify the reduction of pain in the anterior aspect of the knee in patients with patellofemoral pain syndrome (PFPS), after treatment with monopolar capacitive diathermy by radiofrequency. * To evaluate the improvement of functional disability in patients with patellofemoral pain syndrome (PFPS), after treatment with monopolar capacitive diathermy by radiofrequency. Study hypothesis: The treatment of patellofemoral pain syndrome (PFPS) with a therapeutic physical exercise protocol produces statistically significant changes in the reduction of pain and functional disability and the normalization of the anthropometric values of the joint balance of the knee