Research Database

553 results for "Children"

Associations Between Children's Social Functioning and Physical Activity Participation are Not Mediated by Social Acceptance: A Cross-Sectional Study

  • Added on September 30, 2011

Physical activity (PA) during childhood often occurs in social contexts. As such, children's ability to develop and maintain friendship groups may be important in understanding their PA. This paper investigates the associations among children's social functioning, and physical activity and whether perceptions of social acceptance mediate any social functioning-PA association. ...


Predictive Validity of Three ActiGraph Energy Expenditure Equations for Children

  • Presented on 06/01/2005

Purpose This study evaluated the predictive validity of three previously published ActiGraph energy expenditure (EE) prediction equations developed for children and adolescents. Methods A total of 45 healthy children and adolescents (mean age: 13.7 +/- 2.6 yr) completed four 5-min activity trials (normal walking, brisk walking, easy running, and fast running) in an ...


Actigraph Accelerometer-Defined Boundaries for Sedentary Behaviour and Physical Activity Intensities in 7 Year Old Children

  • Added on August 11, 2011

Background Accurate objective assessment of sedentary and physical activity behaviours during childhood is integral to the understanding of their relation to later health outcomes, as well as to documenting the frequency and distribution of physical activity within a population. Purpose To calibrate the Actigraph GT1M accelerometer, using energy expenditure (...


Actigraph Accelerometer-Defined Boundaries for Sedentary Behaviour and Physical Activity Intensities in 7 Year Old Children

  • Added on August 11, 2011

Background Accurate objective assessment of sedentary and physical activity behaviours during childhood is integral to the understanding of their relation to later health outcomes, as well as to documenting the frequency and distribution of physical activity within a population. Purpose To calibrate the Actigraph GT1M accelerometer, using energy expenditure (...


Effects of Cardiorespiratory Fitness Over Cardiovascular Risk Factors Controlling for Objectively Measured Physical Activity in Youths

  • Added on July 25, 2011

Introduction This study aimed to verify the effects of cardiorespiratory fitness levels over a set of cardiovascular risk factors, controlling for sex and physical activity (PA) of moderate (MPA), vigorous (VPA) and very vigorous (VVPA) intensities in children and adolescents. Methods Students aged 10-19 years (51 boys and 90 girls) completed measurements ...


Sedentary Behavior in Portuguese Youth: The Seasonality Effect

  • Added on July 25, 2011

Introduction Sedentary behavior (SB) is directly associated with a greater risk of death from cardiovascular problems, cancer and all causes. Moreover, SB is directly associated with obesity in children. This study examined whether there was a significant seasonal variation in objectively measured SB in Portuguese youth across five months of ...



The Enivronment and Children's Physical Activity: The PEACH Project

  • Added on July 25, 2011

Introduction The PEACH project (Personal and Environmental Associations with Children’s Health: www.bris.ac.uk/enhs/peach) is a longitudinal study investigating the environmental and personal determinants of physical activity and eating behaviours in children across the transition from primary to secondary school. A cohort of 1307 final year primary ...



Longitudinal Changes in Physical Activity Over Two Years in Young Children

  • Added on July 22, 2011

Background Limited information is available about changes over time in objectively measured daily physical activity in young children. This study evaluates if accelerometer-measured physical activity tracks or changes over two years. Methods Daily physical activity was assessed by the Actigraph accelerometer for four consecutive days in 167 children (boys n=90, girls ...