Research Database

553 results for "Children"

Schoolyard Physical Activity on 6 Schools in Denmark – Using GPS, Accelerometry and GIS

  • Added on March 13, 2012

Background Schools provide a unique setting for the promotion of physical activity (PA) in children through structured physical education, recesses, extracurricular sports and promotion of community activities. Because recesses may contribute up to 40% of moderate/vigorous activity, approaches that increase activity during recess are of interest. A number of recent ...



Agreement Between activPAL and ActiGraph for Assessing Children's Sedentary Time

  • Added on February 19, 2012

Background Accelerometers have been used to determine the amount of time that children spend sedentary. However, as time spent sitting may be detrimental to health, research is needed to examine whether accelerometer sedentary cut-points reflect the amount of time children spend sitting. The aim of this study was to: a) ...


Validation of a Hip-Worn Accelerometer in Measuring Sleep Time in Children

  • Added on January 3, 2012

This study compared measures of sleep from an accelerometer worn on the hip to measures obtained from an accelerometer worn on the wrist, the gold standard measure of sleep behavior in community research. The accelerometer worn on the hip provides a measure of total sleep time in 10- to 11-year-old ...


The Strathclyde Evaluation of Children's Active Travel (SE-CAT): Study Rationale and Methods

  • Added on December 30, 2011

The school commute is a prime opportunity to increase children's physical activity levels. However, active commuting has decreased over the past 40 years. Strategies that increase walking to school are therefore needed. Travelling Green (TG) is a school-based active travel resource aimed at increasing children's walking to school. The resource consists ...


Identification and Validity of Accelerometer Cut-Points for Toddlers

  • Added on December 15, 2011

The purpose of this study was to derive ActiGraph cut-points for sedentary (SED), light-intensity physical activity (LPA), and moderate-to-vigorous physical activity (MVPA) in toddlers and evaluate their validity in an independent sample. The predictive validity of established preschool cut-points were also evaluated and compared. Twenty-two toddlers (mean age = 2.1 years ± 0.4 years) ...


Estimating Physical Activity in 7-year-old British School Children: A Statistical Approach to Modelling Accelerometer Data Using Functional Analysis of Variance

  • Added on November 18, 2011

Background Accelerometers measure levels of physical activity (PA) objectively, and they are being increasingly used to obtain information on PA in children. Functional Data Analysis (FDA) is a statistical method that can be used to better characterise continuous activity patterns and their variation over time. The objective of this study ...


Day Length and Weather Effects on Children's Physical Activity and Participation in Play, Sports and Active Travel

  • Added on November 18, 2011

Background/Aims Proponents of the Daylight Saving Bill currently under consideration in the UK parliament have hypothesised that extending afternoon daylight would promote child physical activity. Our aim was to investigate the relative contribution of day length and weather to children's physical activity, and the behavioural mediators underlying these effects. ...


Validation and Calibration of an Accelerometer in Preschool Children

  • Published on 11/01/2006

The following fundamental research was not performed explicitly using an ActiGraph device. However, the theories developed in this paper are used extensively in ActiGraph’s ActiLife software. Objective Obesity rates in young children are increasing, and decreased physical activity is likely to be a major contributor to this trend. Studies ...


Effects of a Physical Education Intervention on Cognitive Function in Young Children: Randomized Controlled Pilot Study

  • Added on October 28, 2011

Background Randomized controlled trials (RCT) are required to test relationships between physical activity and cognition in children, but these must be informed by exploratory studies. This study aimed to inform future RCT by: conducting practical utility and reliability studies to identify appropriate cognitive outcome measures; piloting an RCT of a 10 ...