Strengths and limitations
A strength of this study was the longitudinal study design with data collection at multiple time points (6-months (during), 12-months (post-intervention) and 24-months (12-months post-intervention) which provided in-depth accounts of participant experiences and a dynamic narrative describing how the motivational processes involved in adoption and maintenance of an active lifestyle evolve over a 24-month period [Although thematic saturation was reached during analysis, we cannot be sure that the addition of data from the participants who declined a follow-up interview would not have impacted the findings, and accept this as a common limitation of longitudinal qualitative studies [