Aims: This study aimed to assess older adults’ perceptions of the FITTEST website, a digital resource supporting frailty prevention across exercise, nutrition, medication optimisation, and social engagement.
Methods: This qualitative study used semi‑structured interviews conducted after one month of FITTEST website access. Interview data were analysed using deductive thematic analysis guided by the first three levels of the Kirkpatrick evaluation model (reaction, learning, behaviour).
Results: A total of 105 expressions of interest were received; 39 participants consented and completed a baseline survey (mean=66 years; range 52–86, 77% female), 22 completed a one‑month follow‑up survey, and 14 participated in semi‑structured interviews. Five themes were identified. (1) General use (Reaction): overall satisfaction was high, driven by perceptions of clear and comprehensive content without commercial intent. (2) Usability (Reaction): engagement was hindered by complex navigation, limited orientation cues, text‑heavy pages, authentication challenges, and inconsistent mobile responsiveness. (3) Content (Reaction/Learning): information was considered easy to understand, with videos supporting comprehension, though some reported information overload and requested more practical tools. (4) Benefits and risks (Learning): participants reported increased awareness of frailty prevention strategies but noted risks associated with generic advice not accounting for comorbidities or differing frailty levels. (5) Implementation (Behaviour): Some participants integrated balance and strength exercises into daily routines, while others reported no behaviour change.
Conclusions: The FITTEST website was acceptable and useful for older adults with moderate digital literacy. Refinements to navigation, tailoring, and multimodal content delivery may enhance engagement and sustained use.