Participatory Design and Iterative Interface Develop-Ment of A Digital Cognitive Rehabilitation Platform For Hospitalized Older Adults

Hospitalization in older adults is associated with accelerated cognitive decline and long-term functional deterioration, yet few digital rehabilitation solutions are specifically de-signed for this context. This paper presents the participatory design process of COGNIVITRA 2.0, a digital platform aimed at supporting cognitive and motor training during hospitalization. Drawing on participatory design methodologies, neuropsycholo-gists and UX/UI designers collaboratively explored user needs, elicited functional and clinical requirements, and iteratively refined early prototypes. The results highlight the importance of interface consistency, clear visual hierarchy and predictable interaction patterns, particularly for older adults with cognitive impairment who may experience cognitive and physical deterioration during hospital stay. Future work will involve pilot deployment, in-situ usability evaluation and multicentre studies to assess therapeutic impact and feasibility in real clinical settings.