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12 Results for: "SPEEDY Study"

Changes in time-segment specific physical activity between ages 10 and 14 years: A longitudinal observational study

  • Published on Jan. 2016

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% ...


The changing relationship between rainfall and children’s physical activity in spring and summer: a longitudinal study

  • Published on March 21, 2015

Background: Weather conditions, along with day length, are proposed as the main drivers of the seasonal patterns in children’s physical activity (PA), but little is known about how they affect children at different ages. This study examines the relationship between rainfall and PA in a longitudinal cohort of initially 9...


Changes in time-segment specific physical activity between ages 10 and 14 years: A longitudinal observational study

  • Published on Oct. 15, 2014

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 =...


The independent prospective associations of sedentary time, moderate and vigorous physical activity with adiposity in young adolescents

  • Presented on May 21, 2014

Purpose: To assess the associations between 1) baseline objectively-measured activity intensity (sedentary (SED), moderate (MPA) or vigorous (VPA) activity) and 4-year change in adiposity, and between 2) 4-year change in activity intensity and adiposity at follow-up. Methods: Analyses of longitudinal data from the SPEEDY study, including all participants with valid data at ...


Rainfall and physical activity; what happens as children age?

  • Presented on May 21, 2014

Purpose: Weather conditions, along with day length, are proposed as the main drivers of the seasonal patterns in children’s physical activity (PA). This study examines the relationship between rainfall and PA among 9-10 year old children in Norfolk, UK, and how this changes as they age. Methods: Participants were 283 ...


Change in school environment and change in children’s physical activity; assessment with a validated school audit tool

  • Presented on May 21, 2014

Purpose: Objective measurement of school environments is important in determining how they impact children’s physical activity. We have previously developed and tested an audit tool to assess the opportunity for physical activity in primary schools. This study aims to test the validity of the same audit tool in secondary ...


Children's sedentary behaviour: descriptive epidemiology and associations with objectively-measured sedentary time.

  • Published on Nov. 25, 2013

Background: Little is known regarding the patterning and socio-demographic distribution of multiple sedentary behaviours in children. The aims of this study were to: 1) describe the leisure-time sedentary behaviour of 9-10 year old British children, and 2) establish associations with objectively-measured sedentary time. Methods: Cross-sectional analysis in the SPEEDY study (Sport, Physical ...


More of the same or a change of scenery: an observational study of variety and frequency of physical activity in British children

  • Published on Aug. 16, 2013

Background Physical activity is important for children's health, but successful physical activity promotion is challenging. Whether performing many different types of activities (Variety) is associated with higher physical activity independent of the number of activity sessions (Frequency) is unknown, but this information could inform physical activity promotion and public health ...


Individual, socio-cultural and environmental predictors of uptake and maintenance of active commuting in children: longitudinal results from the SPEEDY study

  • Published on July 2013

Commentary: Britt Johnson, National Heart Foundation Encouraging children to actively commute to school is a public health strategy that helps to incorporate physical activity into daily life. This paper presents the results of a longitudinal investigation into the individual, socio-cultural and environmental predictors of active commuting to school amongst 9-10 ...


School Related Factors and 1yr Change in Physical Activity Amongst 9–11 year old English Schoolchildren

  • Published on December 31, 2012

Background Activity levels are known to decline with age and there is growing evidence of associations between the school environment and physical activity. In this study we investigated how objectively measured one-year changes in physical activity may be associated with school-related factors in 9- to 10-year-old British children. Methods Data ...