Background: Embedded within children's weight trajectories are complex environmental contexts that influence obesity risk. As such, the normative environment of body mass index (BMI) within schools may influence children's weight trajectories as they age from kindergarten to fifth grade. Methods: I use 5 waves of the ECLS-K--Kindergarten Class…

Background: School initiatives aimed at increasing physical activity (PA) may improve the health of children in low-income communities. Methods: Assessors completed 5909 observations of students' PA during leisure periods using a validated instrument in 19 schools in low-income Latino communities. We examined relationships between school…

Background: Out-of-school time (OST) programs are an important setting for supporting student health and academic achievement. This study describes the prevalence and characteristics of school-based OST programs, which can inform efforts to promote healthy behaviors in this setting. Methods: A nationally representative sample of public elementary…

Background: Snacks served in afterschool programs (ASPs, 3-6?pm) represent an important opportunity to promote healthy eating. ASP policies suggest a fruit/vegetable is served daily, while sugar-sweetened foods/beverages and artificially flavored snacks are eliminated. Limited information exists on the types of snacks served in ASPs, if snacks…

Background: Understanding teachers' appraisals of student wellness services and supports during COVID-19 is essential to strengthening services and improving student health outcomes. This mixed-method study aimed to examine US PK-12 teachers' appraisals of student wellness services and supports during COVID-19. Methods: This study focuses on…

Background: Turn 2 Us (T2U) is an elementary school-based mental health promotion and prevention program in New York City. It targets fourth- and fifth-grade students at risk for social/emotional and behavioral problems and provides a range of services to students, staff, and parents. The purpose of this study is to determine if T2U decreases…

Background: Authorities recommend that youth undertake at least 60 minutes of daily moderate-to-vigorous physical activity (MVPA), with young people having the opportunity to undertake at least half of this MVPA during school hours. Methods: In this study, we examined the influence of school-level socioeconomic status (SES) on children's PA,…

Background: The objective was to predict early adolescents' emotional well-being from personal and contextual assets in the classroom. Emotional well-being is a key indicator of health. Aligned with the positive youth development (PYD) framework, a supportive classroom environment and positive relationships with teachers and peers were contextual…

Background: While dietary sources of calcium are important for bone health, the intake of milk and milk products decreases as children get older. A free milk in schools program may mitigate this decrease in milk consumption. We evaluated the Fonterra Milk for schools program (a free milk initiative) by determining changes in children's milk…

Background: High volumes of school-based sedentary time may impact academic achievement and executive function negatively. This study evaluated a multimodal classroom program's (POWER) effect on fifth graders' physical activity (PA) and executive function. Methods: Six 5th grade classes (3 = intervention [POW]; 3 = waitlist control [CONT]) in 2…

Background: There are many potential health benefits to having nutrition education programs offered by expert outside sources in schools. However, little is known about why and how schools initiate, implement, and institutionalize them. Gaining this understanding may allow the impact and reach of nutrition and other health education programs in…

Background: Practical tools are needed that reliably measure the complex physical activity (PA) and nutrition environments of elementary schools that influence children's health and learning behaviors for obesity prevention. The School Physical Activity and Nutrition-Environment Tool (SPAN-ET) was developed and beta tested in 6 rural Oregon…

Background: This research investigates the extent to which the holistic, multistrategy "health-promoting school" (HPS) model using a resilience intervention can lead to improved resilience among students. Methods: A quasi-experimental design using a study cohort selected from 20 primary schools in Queensland, Australia was employed. Ten…

Background: Public health concerns regarding childhood obesity and sedentary behavior make investigations of children's physical activity (PA) promotion crucial. School recess, a highly discretional time, plays a central role in shaping children's activity preferences. Methods: Participants included 40 children (30 girls, 10 boys) from fourth and…

Background: Our objective was to examine the association between school wellness committees and implementation of nutrition wellness policies and children's weight status and obesity-related dietary outcomes. Methods: A cross-sectional study was conducted of 4790 children aged 4-15 years recruited from 130 communities in the Healthy Communities…