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15 Results for: "ISCOLE Study"

Perceived and objective neighborhood support for outside of school physical activity in South African children

  • Published on June 1, 2016

Background: The neighborhood environment has the potential to influence children’s participation in physical activity. However, children’s outdoor play is controlled by parents to a great extent. This study aimed to investigate whether parents' perceptions of the neighborhood environment and the objectively measured neighborhood environment were associated with children's ...


Why are children sedentary: an examination using the International Study of Childhood Obesity, Lifestyle and the Environment

  • Published on June 8, 2016

Abstract: Physical inactivity and sedentary behaviour have been independently associated with a wide range of negative health indicators including obesity, poor cardio-metabolic health, and poor psychosocial health. The overarching objective of this research was to gain a better understanding as to why children are sedentary and where we need to ...


Nocturnal sleep-related variables from 24-h free-living waist-worn accelerometry: International Study of Childhood Obesity, Lifestyle and the Environment

  • Published on Dec. 2015

Objectives: We describe the process of identifying and defining nocturnal sleep-related variables (for example, movement/non-movement indicators of sleep efficiency, waking episodes, midpoint and so on) using the unique 24-h waist-worn free-living accelerometer data collected in the International Study of Childhood Obesity, Lifestyle and the Environment (ISCOLE). Methods: Seven consecutive ...


Correlates of Total Sedentary Time and Screen Time in 9–11 Year-Old Children around the World: The International Study of Childhood Obesity, Lifestyle and the Environment

  • Published on June 11, 2015

Purpose: Previously, studies examining correlates of sedentary behavior have been limited by small sample size, restricted geographic area, and little socio-cultural variability. Further, few studies have examined correlates of total sedentary time (SED) and screen time (ST) in the same population. This study aimed to investigate correlates of SED and ...


Correlates of objectively measured sedentary time and self-reported screen time in Canadian children

  • Published on March 18, 2015

Background: Demographic, family, and home characteristics play an important role in determining childhood sedentary behaviour. The objective of this paper was to identify correlates of total sedentary time (SED) and correlates of self-reported screen time (ST) in Canadian children. Methods: Child- and parent-reported household, socio-demographic, behavioural, and diet related data ...


Improving wear time compliance with a 24-hour waist-worn accelerometer protocol in the International Study of Childhood Obesity, Lifestyle and the Environment (ISCOLE)

  • Published on Feb. 11, 2015

Background: We compared 24-hour waist-worn accelerometer wear time characteristics of 9–11 year old children in the International Study of Childhood Obesity, Lifestyle and the Environment (ISCOLE) to similarly aged U.S. children providing waking-hours waist-worn accelerometer data in the 2003–2006 National Health and Nutrition Examination Survey (NHANES). Methods: Valid cases ...


Reliability and variability of assessed sports/play features in a multi-national study: The International Study of Childhood Obesity, Lifestyle and the Environment (ISCOLE)

  • Presented on May 21, 2014

Purpose: To examine reliability and variability of objectively-measured aspects of the school physical activity environment across 247 schools in 12 countries, representing both the developed and developing world. Methods: Audits of the school physical activity and nutrition environment were conducted by trained data collectors for all schools participating in the International Study ...


Objectively Measured Physical Activity Levels and Obesity. A Study with ISCOLE Portuguese Children

  • Presented on May 31, 2014

Background: The effects of physical activity (PA) in producing weight loss are well known. However, there is some controversy about the relationship between PA intensity and levels of obesity in children. Further, different cut-offs have been used to classify obesity, which may influence the observed associations with PA. The ...


School and Student Level Correlates of Objectively Measured Physical Activity. A Multilevel Analysis with ISCOLE Portuguese Children

  • Presented on May 31, 2014

Background: Children spend most of their awake time at school, where they are engaged in active and sedentary activities. As such, it is relevant to understand the importance of school environmental characteristics (SEC) related to children’s physical activity (PA). The main aim of the International Study of Childhood, Obesity, ...


Variance Components In Sedentarism. A Study With Iscole Portuguese Children

  • Presented on May 31, 2014

Background: It well established that sedentarism (SED) adversely affects children´s health. Further, SED is a complex behavior and likely influenced by individual- and school-level predictors. The International Study of Childhood Obesity, Lifestyle, and Environment (ISCOLE) aims to determine the relationship between lifestyle characteristics and obesity in children, and ...