Comparison of the Effectiveness of Treadmill-Based Walking and Dual-Task Walking Training in Alzheimer's Disease

Inclusion Criteria: 1. Diagnosis of Alzheimer's disease according to the NINCDS-ADRDA criteria by a neurologist, 2. In the early or middle stages of the disease according to the Clinical Dementia Rating Scale (CDR), 3. Receiving medical treatment for Alzheimer's disease (e.g., cholinesterase inhibitors or memantine) for at least the past month, 4. Able to walk at least 400 meters in the 6-Minute Walk Test, indicating functional mobility, 5. Able to read and understand instructions given in Turkish. Exclusion Criteria: 1. Having Lewy body dementia, frontotemporal dementia, or other types of dementia 2. Participating in a structured exercise program within the 6 months prior to starting the study 3. Having pulmonary, neurological, musculoskeletal, or rheumatological diseases that hinder walking 4. Having an unstable medical condition (e.g., uncontrolled diabetes or hypertension, deep vein thrombosis, etc.) 5. Having visual or auditory impairments that make communication difficult 6. Having behavioral problems that make participation in exercise difficult