Background
The 2018 Physical Activity (PA) Guidelines for Americans recommend achieving 150 min or more per week of moderate-intensity equivalent PA – which translates to approximately 7,000–8,000 steps or more per day [Ecological models [Gamification [Thus, the purpose of this cluster pilot RCT was to evaluate the feasibility (treatment adherence and satisfaction) and preliminary efficacy of an e/mHealth gamification approach designed to harness the influence of existing social ties for increasing steps and moderate-to-vigorous physical activity (MVPA) among insufficiently physically active adults.