Inclusion Criteria:  For Parkinson's Patients;  Being 18 years or older Receiving a diagnosis of Parkinson's made by a specialist neurologist Being able to walk independently Being between stages 1-4 on the Hoehn & Yahr scale  For the Control Group;  • Being 18 years or older  Exclusion Criteria:  For Parkinson's Patients;  Having any neurological disease other than Parkinson's Presence of cardiovascular, vestibular and musculoskeletal disease Having a score of <24 on the Standardized Mini Mental Test  For the Control Group;  Having any disease that may affect balance, gait, posture and respiratory functions Using sedative - antidepressant medication that will impair physical well-being Having a score of <24 on the Standardized Mini Mental Test