Background During childhood and adolescence, both physical activity (PA) and sedentary behaviour seem to influence cardiorespiratory fitness (CRF); however, the combined association of PA and sedentary behaviour remains to be understood. We analysed the combined association of objectively measured sedentary behaviour and moderate-to-vigorous intensity PA (MVPA) on CRF in Portuguese ...
Objective To explore the effects of an innovative school-based intervention for increasing physical activity.
Methods 226 children (5–7 years old) randomly selected from 12 Australian primary schools were recruited to a cluster randomised trial with schools randomly allocated to intervention or control conditions. The 13-week intervention comprised: (1) altering the school playground by introducing ...
Background Although school-based interventions to promote physical activity in adolescents have been suggested in several recent reviews, questions have been raised regarding the effects of the strategies and the methodology applied and for whom the interventions are effective. The aim of the present study was to investigate effects of a ...
Background Sedentary behavior is associated with increased risk of chronic disease and sedentary behavior is increasing among adolescents. Data on changes in sedentary behavior in developing countries are limited.
Purpose To describe 5-year longitudinal changes in nonschool sedentary hours among urban adolescents in Ho Chi Minh City, and to identify ...
Background Adolescence is an established period of physical activity decline. Multi-component school-based interventions have the potential to slow the decline in adolescents’ physical activity; however, few interventions have been conducted in schools located in low-income or disadvantaged communities. This study aims to assess the effectiveness of a multi-component school-based intervention ...
Purpose To review recently published studies on the reproducibility, validity, and feasibility of motion sensors used to assess physical activity in healthy children and adolescents (2-l1 yr).
Methods In October 2004, a systematic literature search in PubMed, EMBASE, and PsyclNFO was performed. This search has been updated in October 2007. In this ...
Abstract To analyze the intra- and inter-instrument reliability of the ActiGraph GT3X accelerometer using a vibration table on each orthogonal axis and at five frequencies of motion. Ten GT3X units were subjected to a specific vibration using a motorized vibration table along the vertical, horizontal right–left and ...
Background and Purpose Building on interventions promoting active physical education (PE) and other strategies, school districts and states have initiated policies and programs to improve physical activity levels. in March 2010, the Boston Public Health Commission received Communities Putting Prevention to Work (CPPW) funding. in one initiative, the Boston Public Schools (...
Background and Purpose Schools are an important setting for providing physical activity opportunities, but children's physical activity varies drastically across schools. Identifying specific school practices that are related to children's physical activity during school could inform policies and interventions.
Objectives To investigate the relation of elementary school physical activity practices ...
Background and Purpose Active travel to school has been widely promoted as a means to reverse the obesity epidemic. Abundant evidence indicates built environments influence parental decisions on children’s school commuting mode. There has been a
growing interest in using portable instruments such as Global Positioning System (GPS) units ...