Exergame-Based Upper-Limb Rehabilitation in Adults With Chronic Stroke

Inclusion Criteria: * Adults aged 18 years or older. * Confirmed diagnosis of chronic stroke with more than 6 months of evolution. * Ability to maintain independent sitting and standing (with or without assistive devices). * Upper-limb functional capacity ranging from limited to moderate, defined as an ARAT score between 11 and 54 points. * Ability to understand and follow simple instructions (Mini-Mental State Examination ≥ 23). * Ability to provide informed consent personally or through a legal representative. Exclusion Criteria: * Acute illness, musculoskeletal pathology, or pain that interferes with the performance of rehabilitation exercises. * Uncompensated sensory deficits, including significant visual or hearing impairments. * Disruptive behavior or neuropsychiatric conditions that may limit participation. * Active epilepsy or any medical contraindication to physical exercise. * Botulinum toxin treatment affecting the upper limb within the previous 6 months.