Within group analysis
Preliminary analysis will examine within group differences in each of the study groups from baseline to the end of the intervention at 2 years. Minutes of moderate or greater intensity activity per week will be examined using paired t-test if the distribution is approximately normal or the nonparametric Wilcoxon signed-rank test if normality cannot be assumed. McNemar’s chi-squared test will be used for a paired analysis of meeting recommended physical activity level (binary outcome) pre and post intervention.