This research brief summarizes a study of the impact of a before-school physical activity program, Build Our Kids' Success (BOKS), on the families of child participants and the association of participation with change in family attitude and behaviors towards physical activity participation and healthy eating. The findings are based on analysis of parent interviews and survey data. Findings suggest that while the degree to which engagement with families' by the program is limited and may vary, the child's participation in the program influences changes in families' attitudes and behaviors towards physical activity and healthy eating. Before-school physical activity programs may offer a promising model for how school health professionals can increase child physical activity and healthy eating as well as promote health and wellness within families through the child's participation. Research was conducted from October 2014 through May 2015.