Tailored physical activity advice
The module completion rates (4.5 out of 6 modules) in both groups were very good compared to similar studies in younger adults [Whilst some participants mentioned in their open-ended responses that they liked the tailored advice, many felt as though the advice was not tailored enough, that the surveys to inform the advice did not capture their situation, and that the incidental activities they already do were not factored into the advice. This might partially explain why the tailored advice alone did not lead to improved physical activity changes. Future interventions could consider further personalising the advice to better factor in participants’ situations such as age, external barriers, and incidental activities. This could be done through personal contact to discuss the tailored advice, adding further variables to tailor the advice on, or through use of a machine learning based chatbot [The high number of participants who agreed to the acceptability question ‘I thought that too much physical activity advice was provided’ (49%) is not in line with past studies evaluating tailored physical activity advice. These studies found only 14% [