Evaluating the Impact of the McMaster Optimal Aging Portal on Knowledge, Behavioural Intentions and Health Behaviours Related to Physical Mobility

Physically active lifestyles are important for health aging, but most Canadians do not meet published physical activity guidelines. This may be in part due to lack of access to evidence-based information on mobility and aging, and knowledge of strategies to maintain or improve mobility with age. The McMaster Optimal Aging Portal (the Portal) was launched in 2014 to increase public access to trustworthy health information. Now the investigators want to know if easy-to-understand evidence-based messages change what people know and do to stay healthy and mobile.

Sequential, explanatory mixed-methods design consisting of a two-armed randomized controlled trial and a qualitative process study to explore quantitative findings in depth.

Consent forms and a baseline survey will be sent to all interested participants. Following baseline data collection, participants will be stratified by previous Portal use, and randomized to the Knowledge Translation (KT) intervention or control group. During the 12-week KT intervention, intervention group participants will have access to the Portal and will receive mobility- focused weekly email alerts including blog posts and evidence summaries relevant to mobility and be invited to follow a Twitter and Facebook feed; a unique hashtag will be created to identify and collate relevant mobility information. Control group participants will be able to access the Portal in a 'self-serve' fashion, but will not receive targeted KT strategies.