The Protocol and Feasibility Results of a Preliminary Instagram-Based Physical Activity Promotion Study

Background: Social media-based interventions are commonly used mode of delivery for physical activity promotion interventions. Instagram is an understudied social media platform and our purpose was to describe a detailed study protocol and report the feasibility of an Instagram-based physical activity promotion intervention. Method: Participants (n = 45) were recruited and randomized to follow one of three Instagram accounts for 3 months. The groups included a control, a popular fitness account, and two intervention groups. Participants were asked to complete weekly surveys for four weeks, at a 2-month follow up, and at a 3-month follow up. Participants were incentivized by being entered into a drawing for a free wearable activity monitor. Results: The intervention rate was 40% while the retention rate after four weeks was 33.3% and 22.2% after three months. Participants in the intervention groups reported higher education from the study account, enjoyment, and satisfaction. Conclusion: Although the study was well-received, more research is needed to determine how to increase retention within an Instagram-based intervention. Researchers should consider methods for participant identification, variations of interactive content, and extending the intervention period when designing their own study.