Inclusion Criteria:  be over 18 age Having a unilateral traumatic transfemoral amputation for at least 3 months Using prosthesis for at least 3 months Not having cognitive problems Using your current prosthesis for at least 4 hours a day No concomitant orthopedic problem in the contralateral lower extremity  Exclusion Criteria:  Under the age of 18 Presence of neurological, cardiovascular and pulmonary disease that may affect walking performance Being inadequate in Turkish communication Residual extremity skin loss Using a walking aid