Physical activity (PA) estimates from the Fitbit Flex 2 were compared to those from the ActiGraph GT9X Link in 123 elementary school children. Steps and intensity-specific estimates of PA and 3-month PA change were calculated using two different ActiGraph cut-points (Evenson and Romanzini). Fitbit estimates were 35% higher for steps compared to…

Afterschool settings have continued to be identified as an ideal outlet for supporting youth development in many arenas, including physical activity (PA) behaviors and social emotional learning (SEL) skills. In fact, PA centered programs are ideal settings for youth to 8 develop and practice SEL skills in authentic ways. However, there a several…

Previous scientific research on the use of mobile applications to increase physical activity level and improve health among adolescents does not provide conclusive results, one of the main reasons being the lack of adherence to the intervention after the first weeks. For this reason, the main objectives of the research were to determine the…

The period after school represents an opportunity to engage children in physical activity (PA) programmes in schools. The purpose of this study was to evaluate the effect of an afterschool programme, delivered in schools, on children's participation in and attitudes to PA. Ten schools took part in this non-randomized controlled trial (five…

In this article, the authors analyze the ways literacy integration evolved in a multi-year interdisciplinary after-school program that supports youth through a focus on literacy, physical activity, and health. To deviate from the increasingly siloed assumptions around literacy education and attend to a more interdisciplinary, integrated…

Purpose: To explore undergraduate students' experiences leading and facilitating an out-of-school-time (OST) physical activity program for middle school girls. Method: Five female undergraduate students (N = 4 Black or African American) participated in semistructured individual interviews and submitted weekly reflections during their time leading…

Guided by the conceptual framework of the Comprehensive School Physical Activity Program (CSPAP), the purpose of this study was to determine if a walking club after school for teachers and students increased physical activity levels, reduced stress, and improved mood. The participants were 51 (67% male, 33% female) fourth- to eighth-grade students…

Background: Physical literacy-focused afterschool activity programs (ASAPs) can be an effective strategy to improve children's health-related parameters. We sought to compare physical activity, body composition, aerobic capacity, and fundamental movement skills between physical literacy-focused ASAP and a standard recreational ASAP. Method: A…

Background: Adolescent girls are at an increased risk of low physical activity and the associated health consequences. Girls Can Move!, an after-school intervention guided by social cognitive theory, was designed to increase physical activity. Purpose: To examine the feasibility and initial effectiveness of Girls Can Move! Methods The 8-week…

The purpose of this study was to evaluate the influences of a structured after-school program on student physical activity for third- through fifth-grade students at five schools in southern Colorado. The study utilized a pretest-posttest intervention design in which six elementary schools in a low socioeconomic status school district in southern…

Background: After-school programs (ASP) provide opportunities to influence children's physical activity (PA). However, little is known about the PA levels of the youngest schoolchildren. The aim of the study was to describe the level of PA intensity and sedentary time among first graders attending ASP in Norway, and to investigate factors that are…

Background: Prevalence and consequences of obesity and sedentary lifestyle are well-documented public health concerns for youth in the United States of America (USA) that disproportionally affect children from low income and minority families. Objective: This mixed-method study focused on estimating levels of physical activity and sedentary…

With the health of today's youth a national priority, professionals need tools for accurately assessing activity patterns and motivating behavior change. Fitness technology may be a promising tool for promoting positive behavior change. The afterschool program WeCook: Fun with Food and Fitness focused on improving food preparation skills,…

Youth physical activity (PA) levels are a central focus for physical educators and health professionals worldwide. This study (a) examined the PA levels of children during structured and unstructured PA lessons of an after-school program (ASP) and (b) described the children's perceptions of structured and unstructured PA. Participants were 31…

Low levels of physical activity can have adverse effects on youth development due to increased risks for many chronic illnesses and medical conditions. Improving physical literacy (PL), or the ability to move with competence and confidence in a wide variety of physical activities within multiple environments, can shape a path of healthy…