The main problem that the authors present in the article is the problem of becoming more physically active. It is especially harder to become more physically active alone. According to the authors, group based interventions can be the solution to the inactivity depending on their approach, the population their targeting, as well as a number of other factors to consider. The study administered the experiment by evaluating 52 unique group based physical activity interventions. They evaluated the appraisals for the intervention from the participants, measured the increase of their post activity following the program, and reviewed the approaches the facilitator of the group administered. Overall 48 of the groups were successful in improving the
