Conditioned Pain Modulation in Patients With Hemophilia

"After confirming that the patients not meet any of the exclusion criteria, dependent and confounding study variables will be assessed.~Patients will be recruited in 3 regions of Spain (Galicia, Madrid and Malaga), through the respective provincial associations and the Spanish Federation of Hemophilia.~The assessment will take place at the premises of the hemophilia associations included in the study. All the evaluations will be carried out by the same physiotherapist, following the same evaluation protocol.~The primary variable of the study will be the conditioned modulation of pain, being age the dependent variable. Secondary variables, estimated as modifiers or confounders, will be kinesiophobia, catastrophizing, anxiety perception, joint damage, pain intensity, functional capacity and pain threshold to pressure, and type of treatment and development of inhibitors."