Background: There is little empirical evidence of the impact of transition from primary to secondary school on obesity-related risk behaviour. The purpose of this study was to examine the effect of a change of school system on physical activity (PA) and sedentary behaviour in pre-early adolescents.
Methods: Fifteen schools in ...
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 ...
Objectives:
To validate activPAL3™ (AP3) for classifying postural allocation, estimating time spent in postures and examining the number of breaks in sedentary behaviour (SB) in 5–12 year-olds.
Design:
Laboratory-based validation study.
Methods:
Fifty-seven children completed 15 sedentary, light- and moderate-to-vigorous intensity activities. Direct observation (DO) was used as the criterion measure. The ...
Objectives: To examine the association of health-related physical fitness components and accurate measures of fatness with attention in European adolescents.
Design: Cross-sectional study.
Methods: A sub-sample of 444 adolescents from the HELENA study (14.5 ± 1.2 years) from 6 different countries participated in this study. Adolescents underwent evaluations of fitness (20 m shuttle run, handgrip strength, ...
Background: Children and youth are often considered the most active segment of the population, however, research indicates that physical activity (PA) tends to peak during the adolescent years, declining thereafter with age. In particular, the acute transition out of high school is a period for which individuals appear to be ...
Background: Applying latent class analysis (LCA) to accelerometry can help elucidated underlying patterns. This study described the patterns of accelerometer-determined sedentary behavior and physical activity among youth by applying LCA to a nationally representative United States (US) sample.
Methods: Using 2003–2006 National Health and Nutrition Examination Survey data, 3998 youths 6–17 years wore ...
Background: Adolescence is a recognised period of physical activity decline, particularly among low-income communities. We report the 12-month (midpoint) effects of a 2-year multicomponent physical activity intervention implemented in disadvantaged secondary schools.
Methods: A cluster randomised trial was undertaken in 10 secondary schools located in disadvantaged areas in New South Wales, ...
Objectives: Describe (1) time-segment specific changes in physical activity (PA) into adolescence, (2) differences in change in PA between specific time-segments (weekdays–weekends, in-school–out-of-school, out-of-school–weekends, lesson-time–lunch-time), and (3) associations of change in time-segment specific with overall PA.
Design: Longitudinal observational study (4-year follow-up).
Methods: Children from the SPEEDY study (n = 769, 42% ...
Background: As physical activity is important for health and well-being, it is essential to monitor population prevalence of physical activity. Surveillance is dependent on the use of valid and reliable measurement tools. The PACE+ questionnaire is used globally in youth and has acceptable reliability; however it has not been validated ...
Objective: To assess the relationships among physical activity, measured objectively, and attention capacity in European adolescents.
Study design: The study included 273 adolescents, aged 12.5-17.5 years, who participated in the Healthy Lifestyle in Europe by Nutrition in Adolescence Study. Participants wore a uniaxial accelerometer for 7 days to measure physical activity. The ...