Physical Activity and Nutrition Intervention in Afterschool Programs
Nutrition and Physical Activity Policies, Obesogenic Behaviors and Weight Outcomes
The investigators long-term goal is to advance the adoption and successful implementation of
policies that promote PA and nutrition in after school programs (ASP) nationwide. The
investigators objective here is two fold. First, the investigators will test the
effectiveness of two promising strategies designed to 1) increase the amount of PA children
accumulate while attending an ASP and 2) promote changes in the nutritional quality of the
snacks served. This represents a fundamental step in establishing practice-based guidelines
(best practices) for the uptake and achievement of public health policy goals (CA and
Harvard). Second, the investigators will examine the barriers and facilitators to
implementing these strategies. The expected outcome of this study is evidence supporting
best practices for ASPs to employ to meet policy goals.
The investigators will use a 3-year delayed treatment, cluster randomized controlled trial
design with 20 ASPs that serve mostly low-income and minority children (approximately 1300
children ages 6-12yrs) in Columbia, SC and address the following specific aims: Aim 1.
Evaluate the impact of a staff-level intervention, a professional development training
program focused on core competencies to promote physical activity, on children's physical
activity levels; Aim 2. Evaluate the impact of a site-level intervention, a snack
modification program that includes a discount buying program, on the quality of snacks
served and consumed; and Aim 3. Evaluate the implementation of the staff-level and
site-level interventions and identify organizational, staff, and setting characteristics
that influence the process of implementing these strategies.
University of South Carolina
University of South Carolina, National Institutes of Health (NIH), National Heart, Lung, and Blood Institute (NHLBI)