Objective Parents who overestimate their child's physical activity (PA) level may not encourage their children to increase their PA. We assessed parental awareness of child PA, and investigated potential correlates of overestimation. Method Child PA (accelerometer) and parent-classified child PA ['active' ≥ 60 min/day vs. 'inactive' <60 min/day moderate and ...
Background The Developmental Origins of Health and Disease hypothesis suggests that intrauterine, infancy and early childhood variables play a key role at programming later health. However, little is known on the programming of behavioral variables, because most studies so far focused on chronic disease-related and human capital outcomes. The aim ...
Objectives The purpose of this study was to determine whether ActiGraph accelerometer activity counts and estimates of moderate-to-vigorous physical activity collected at a single larger epoch are comparable to those collected at smaller epochs reintegrated into a larger epoch. Design A cross-sectional study design. Methods Thirty-one preschoolers (3–5 years) concurrently wore ...
Objectives The GT1M ActiGraph has been replaced by the triaxial GT3X which includes an inclinometer to detect postures. The purpose of this study was to investigate comparability of the GT3X to the GT1M and to develop activity intensity cut-points for the vector magnitude of the GT3...
Objective To evaluate the classification accuracy of five ActiGraph moderate-to-vigorous physical activity (MVPA) cut-point definitions in pre-school children using energy expenditure measured by whole-room calorimetry as the criterion measure. Methods 20 children aged 4-6 years (5.1 ± 0.8years) completed a ~50 min whole-room calorimeter protocol involving age-appropriate moderate and vigorous physical activities (eg. rumling ...
Objective To investigate the single and combined associations of physical activity (PA), body mass index (BMI), and sleep duration with clustering of cardiovascular disease risk markers in healthy children. Methods We did a cross-sectional pilot-study of 74 Danish school children aged 8-11 years. Risk factors included in a continuous metabolic syndrome ...
Introduction physical activity (PA) is perceived to be a key determinant of childhood adiposity. This study objectively characterizes the daily PA of 7-year-olds and relates it to waking time, intensity, UK recommendations and body fat. Methods and Participants MTI-Actigraph accelerometers were worn by 129 (88) healthy boys (girls) for seven days. Calibration ...
Introduction There is much interest in children’s physical activity (PA), but little understanding of its control. The evidence that total activity levels could be increased by the provision of greater opportunity for physical activity is lacking. Methods and Participants MTI-Actigraph accelerometers recorded weekly PA in two groups of healthy ...
Purpose To describe the patterns of sedentary behaviour (SB) across the day and explore relationships with body composition and fitness. Methods 249 children (mean age 8.8 yrs; 56% female) wore an ActiGraph GT1M accelerometer for 7 days, completed a 20m shuttle run fitness test and had triceps and subscapular skinfolds measured. SB was ...
Purpose To evaluate the influences of social and physical environmental factors within the home on preschoolers’ PA. Methods GT1M Actigraph data for 7 days were obtained in a random sample of 70 boys and 71 girls (5.4 years ± 0.3). Social (parental attitudes, knowledge, social support, rules) and physical environmental factors (play space, TV and ...