Inclusion Criteria:  Being over 18 years old Patients with a medical diagnosis of hemophilia A or B. Patients with a severe phenotype of hemophilia (<1% FVIII/FIX). Patients with a medical diagnosis of hemophilic ankle arthropathy and more than 3 points on the Hemophilia Joint Health Score. Nno scheduled orthopedic surgeries during the study phase. Signing the informed consent document.  Exclusion Criteria:  Patients with ankle hemarthrosis in the month before the beginning of the study. Patients unable to walk even with technical aids.  Patients with hemophilic elbow arthropathy that prevented the performance of the exercises.  Patients failing to complete at least 80% of the sessions scheduled in the intervention