Aim Some studies have analyzed the relation between sedentary behavior (SB) and body composition in children and adolescents. However most of the studies have used self-reported measures of SB and/or did not consider the potential confounding effect of physical activity in their analysis. The aim of this study was ...
Aim The aim of this cross-sectional study was to explore relationships between motor coordination coefficient (MC), cardiorespiratory fitness (VO2max) moderate to vigorous physical activity (MVPA) and percentage of body fat (%BF) in children and adolescents from 6 to 19 years. Methods 108 children and adolescents (65 girls, 60.2%) from 6 schools in Porto district took ...
Aim The purpose of this study was to describe objectively measured physical activity (PA) levels in a rural Irish population based sample of students aged 12-14 years of age 1) during weekday and weekend time periods and 2) specific to the weight status of participants. Methods One hundred and seventy four students ...
Aim Little is known of the longitudinal association between sub-clinical atherosclerosis from childhood to adolescence. Therefore, the aim was investigate the association between physical activity (PA) intensity across childhood and sub-clinical atherosclerosis in adolescence. Methods This was a prospective study of a sample of 236 children (baseline age 8-10 y) with ...
Aim To investigate eight-year changes in fatness, fitness and physical activity in a cohort of Icelandic children by comparing measurements conducted at two different time points. Methods In 2003 a total of 489, 9-year-olds participated in a study called Lifestyle of 9 and 15 year-old Icelanders. A total of 258 from this cohort were recruited ...
Background Leptin may influence moderate to vigorous physical activity (MVPA) at the start of puberty. The direction and magnitude of this association are unclear. Objectives To determine the effect of baseline leptin on MVPA over 1 year in minority girls at high risk for obesity. Methods Data came from TRANSITIONS, a ...
Purpose Physical activity in youth decreases with age, with the transition from primary to secondary school being a key period for change. Active travel to school has been associated with higher physical activity in youth compared with those who travel by car. This study investigated whether change in travel mode ...
Introduction Data on physical activity levels of adolescents are mostly derived from self-reported instruments, and the vast majority of studies using objective measures are from high-income countries. The aim of this study was to describe the patterns of objectively measured physical activity in Brazilian adolescents. Methods In 2004–2005 (mean age of 13.3 ...
Previous studies have demonstrated that pattern recognition approaches to accelerometer data reduction are feasible and moderately accurate in classifying activity type in children. Whether pattern recognition techniques can be used to provide valid estimates of physical activity (PA) energy expenditure in youth remains unexplored in the research literature. Purpose The ...
Background We aimed to examine whether time spent on different sedentary behaviours is associated with bone mineral content (BMC) in adolescents, after controlling for relevant confounders such as lean mass and objectively measured physical activity (PA), and if so, whether extra-curricular participation in osteogenic sports could have a role in ...