Research Database

81 results for "Activity and Technology"

Household-level correlates of children’s physical activity levels in and across 12 countries

  • Published on Aug 25, 2016

Objective: Household factors (electronic media equipment, play equipment, physical activity in the home, and social support) have been associated with childhood moderate- to vigorous-intensity physical activity (MVPA), but little is known about how these factors differ across diverse countries. The objective was to explore household correlates of objective MVPA in ...


Estimating Physical Activity and Sedentary Behavior in a Free-Living Context: A Pragmatic Comparison of Consumer-Based Activity Trackers and ActiGraph Accelerometry

  • Published on Jul 9, 2016

Background: Activity trackers are increasingly popular with both consumers and researchers for monitoring activity and for promoting positive behavior change. However, there is a lack of research investigating the performance of these devices in free-living contexts, for which findings are likely to vary from studies conducted in well-controlled laboratory settings. ...


Testing the activitystat hypothesis: a randomised controlled trial

  • Published on Aug 30, 2016

Abstract: It has been hypothesised that an ‘activitystat’ may biologically regulate energy expenditure or physical activity levels, thereby limiting the effectiveness of physical activity interventions. Using a randomised controlled trial design, the aim of this study was to investigate the effect of a six-week exercise stimulus on energy expenditure and ...


Objectively Measured Physical Activity During Physical Education and School Recess and Their Associations With Academic Performance in Youth: The UP&DOWN Study

  • Published on Apr 4, 2017

Background: This study examined the associations of objectively measured physical activity in Physical Education and recess with academic performance in youth. Methods: This cross-sectional study was conducted with 1,780 participants aged 6 to 18 years (863 girls). Physical activity was objectively measured by accelerometry and was also classified according to sex- and age specific ...




Wearable Accelerometers in High Performance Jet Aircraft

  • Added on January 26, 2016

INTRODUCTION: Wearable accelerometers have become ubiquitous in the fields of exercise physiology and ambulatory hospital settings. However, these devices have yet to be validated in extreme operational environments. The objective of this study was to correlate the gravitational forces (G forces) detected by wearable accelerometers with the G forces detected ...


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 ...


Misreporting of energy intake in a new web-based food record for children and adolescents

  • Presented on 2015

Background: Misreporting of energy intake is well known from traditional dietary assessment methods, and assessment among the youngest is especially challenging. Web-based tools are increasingly popular. However, little is known whether these web-tools improve the recording accuracy. Objective: To assess the accuracy of children and adolescent's energy intake estimated from ...


Associations of Parental Rules and Socioeconomic Position With Preschool Children’s Sedentary Behaviour and Screen Time

  • Published on April 2015

Background: There is little current understanding of the influences on sedentary behavior and screen time in preschool children. This study investigated socioeconomic position (SEP) and parental rules as potential correlates of preschool children’s sedentary behavior and screen time. Methods: Data from the Healthy Active Preschool Years (HAPPY) Study were ...