A web-based physical activity intervention targeting affect regulation: a randomized feasibility trial.

Early career professionals (ECPs) are a critical target for physical activity (PA) promotion. Affect contributes to an established PA intention-behaviour gap and is pertinent among ECPs. OBJECTIVE: The purpose of this study was to examine the feasibility and acceptability of a web-based intervention and explore the effects on secondary outcomes (moderate-to-vigorous PA (MVPA), emotion regulation, multi-process action control constructs). METHODS: Adults aged 25-44 who were employed at least part-time in a desk-based job and not meeting PA guidelines ( p 2 =0.30), emotion regulation (η p 2 =0.49), behavioural regulation (η p 2 =0.53), affective attitude (η p 2 =0.23), identity (η p 2 =0.24), and constructs of mindfulness (η p 2 =0.44), and valued living (η p 2 =0.20). CONCLUSIONS: Primary outcomes concerning feasibility were adequate and secondary outcomes improved, suggesting a full-scale randomized controlled trial is feasible with minor modifications. A large-scale study is warranted to establish intervention effectiveness.