Background: Schoolyards and/or playgrounds are important settings for fostering children's social, cognitive, and physical development. Optimal schoolyard design is likely an important health-promoting and equigenic strategy, but prior research does not fully consider multiple dimensions of these spaces, such as vegetation, slopes, ground cover,…

Background: Many school-based physical activity (PA) interventions are implemented without adequately assessing their contextual fit, which can hinder their effectiveness and sustainment, ultimately reducing their impact on student health and well-being. This study aimed to assess the pre-implementation fit of the Interrupting Prolonged Sitting…

Background: A mismatch between organizational priorities and system-level policies can negatively impact implementation and sustainment of classroom-based physical activity (PA) interventions. The purpose of this study was twofold: (1) present methods to systematically identify organization- and system-level implementation barriers, and (2) align…

Background: Understanding how and where children accumulate their physical activity (PA) and sedentary minutes throughout the day has important implications for behavioral interventions. Purpose: The purpose of this study was to examine the duration and intensity of habitual PA and sedentary time (SED) at and away from school among preadolescent…

Background: Given levels of sedentary behavior among youth, teachers have been called upon to increase physical activity (PA) by implementing classroom PA breaks. School-based interventions enacted in classroom settings have shown promise in increasing youth PA. Yet little is known about how teacher efficacy toward implementing classroom PA breaks…

Research tracking sport participation from youth to adulthood is relatively rare, as is research that tracks youth sport participation with regard to adult physical activity (PA) levels, especially in the United States. Aims of this study were: 1) To investigate the degree to which sport participation tracked across youth, adolescence, and early…

Objective: To evaluate the short-term outcome of the social marketing approach used in Project FIT, we developed a school- and community-based programme for promoting healthful eating and physical activity in kindergarten to 5th-grade children and their parents. Design: A 2-year quasi-experiment for children and two cross-sectional surveys for…

In 2005, Congress passed legislation establishing the Safe Routes to School Program (SRTS). Since then, nearly all states and the District of Columbia have announced local or statewide SRTS activities, and thousands of schools have participated in the program. SRTS enables and encourages children to walk and bike to school by helping communities…

Using a quasiexperimental design, the authors examine whether fourth- and fifth-grade students exposed to a developmental physical education (PE) curriculum, Michigan's Exemplary Physical Education Curriculum (EPEC), demonstrated stronger motor skill--specific self-efficacy and perceptions of physical activity competence, physical activity levels,…