Blar i Brage NIH på forfatter "Sharp, Stephen J."
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Change in objectively measured physical activity during the transition to adolescence.
Corder, Kirsten; Sharp, Stephen J.; Atkin, Andrew J.; Griffin, Simon J.; Jones, Andrew P.; Ekelund, Ulf; van Sluijs, Esther M. F. (Journal article; Peer reviewed, 2013-11-22)Background: Physical activity (PA) declines during adolescence but change in different PA intensities across population subgroups is rarely explored. We describe change in sedentary (SED) time, light (LPA), moderate (MPA) ... -
Combined influence of epoch length, cut-point and bout duration on accelerometry-derived physical activity
Orme, Mark; Wijndaele, Katrien; Sharp, Stephen J.; Westgate, Kate; Ekelund, Ulf; Brage, Søren (Journal article; Peer reviewed, 2014-03-10)Background: It is difficult to compare accelerometer-derived estimates of moderate-to-vigorous physical activity (MVPA) between studies due to differences in data processing procedures. We aimed to evaluate the effects of ... -
Does birth weight influence physical activity in youth? a combined analysis of four studies using objectively measured physical activity
Ridgway, Charlotte L.; Brage, Søren; Sharp, Stephen J.; Corder, Kirsten; Westgate, Kate; van Sluijs, Esther M. F.; Goodyer, Ian M.; Hallal, Pedro C.; Anderssen, Sigmund A.; Sardinha, Luis B.; Andersen, Lars Bo; Ekelund, Ulf (Journal article; Peer reviewed, 2011-01-12)Animal models suggest growth restriction in utero leads to lower levels of motor activity. Furthermore, individuals with very low birth weight report lower levels of physical activity as adults. The aim of this study was ... -
Increasing objectively measured sedentary time increases clustered cardiometabolic risk: a 6 year analysis of the ProActive study
Wijndaele, Katrien; Orrow, Gillian; Ekelund, Ulf; Sharp, Stephen J.; Brage, Søren; Griffin, Simon J.; Simmons, Rebecca K. (Journal article; Peer reviewed, 2013-11-06)Aims/hypothesis: We aimed to quantify the associations between change in objectively measured sedentary and moderate-to-vigorous physical activity (MVPA) times and self-reported television viewing over 6 years and change ... -
Magnitude and determinants of change in objectively-measured physical activity, sedentary time and sleep duration from ages 15 to 17.5y in UK adolescents: the ROOTS study.
Collings, Paul J.; Wijndaele, Katrien; Corder, Kirsten; Westgate, Kate; Ridgway, Charlotte L.; Sharp, Stephen J.; Dunn, Valerie; Goodyer, Ian; Ekelund, Ulf; Brage, Søren (Journal article; Peer reviewed, 2015-05-14)Background: Self-reported physical activity (PA) and sleep duration (SLP) change markedly throughout adolescence. We sought to quantify changes in objectively-measured PA, sedentary time (ST) and SLP through adolescence, ... -
Objectively measured physical activity and longitudinal changes in adolescent body fatness: an observational cohort study
Collings, Paul J.; Wijndaele, Katrien; Corder, Kirsten; Westgate, Kate; Ridgway, Charlotte L.; Sharp, Stephen J.; Atkin, Andrew J.; Stephen, Alison M.; Bamber, Diane; Goodyer, Ian; Brage, Søren; Ekelund, Ulf (Journal article; Peer reviewed, 2015-04-27)Background: The data regarding prospective associations between physical activity (PA) and adiposity in youth are inconsistent. Objective: The objective of this study was to investigate associations between ... -
Objectively measured physical activity in four-year-old British children: a cross-sectional analysis of activity patterns segmented across the day
Hesketh, Kathryn R.; McMinn, Alison M.; Ekelund, Ulf; Sharp, Stephen J.; Collings, Paul J.; Harvey, Nicholas C.; Godfrey, Keith M.; Inskip, Hazel M.; Cooper, Cyrus; van Sluijs, Esther M. F. (Journal article; Peer reviewed, 2014-01-09)BACKGROUND: Little is known about preschool-aged children's levels of physical activity (PA) over the course of the day. Using time-stamped data, we describe the levels and patterns of PA in a population-based ... -
Physical activity and all-cause mortality across levels of overall and abdominal adiposity in European men and women: the European prospective investigation into cancer and nutrition study (EPIC)
Ekelund, Ulf; Ward, Heather A.; Norat, Teresa; Luan, Jian'an; May, Anne M.; Weiderpass, Elisabete; Sharp, Stephen J.; Overvad, Kim; Østergaard, Jane Nautrup; Tjønneland, Anne; Johnsen, Nina Føns; Mesrine, Sylvie; Fournier, Agnès; Fagherazzi, Guy; Trichopoulou, Antonia; Lagiou, Pagona; Trichopoulos, Dimitrios; Li, Kuanrong; Kaaks, Rudolf; Ferrari, Pietro; Licaj, Idlir; Jenab, Mazda; Bergmann, Manuela; Boeing, Heiner; Palli, Domenico; Sieri, Sabina; Panico, Salvatore; Tumino, Rosario; Vineis, Paolo; Peeters, Petra H.; Monnikhof, Evelyn; Bueno-de-Mesquita, H. Bas; Quirós, José Ramón; Agudo, Antonio; Sánchez, María-José; Huerta, José-Maria; Ardanaz, Eva; Arriola, Larraitz; Hedblad, Bo; Wirfält, Elisabet; Sund, Malin; Johansson, Mattias; Key, Timothy J.; Travis, Ruth C.; Khaw, Kay-Tee; Brage, Søren; Wareham, Nicholas J.; Riboli, Elio (Journal article; Peer reviewed, 2015-01-14)Background: The higher risk of death resulting from excess adiposity may be attenuated by physical activity (PA). However, the theoretical number of deaths reduced by eliminating physical inactivity compared with overall ... -
Physical activity, sedentary time and gain in overall and central body fat: 7-year follow-up of the ProActive trial cohort
Golubic, Rajna; Wijndaele, Katrien; Sharp, Stephen J.; Griffin, Simon J.; Wareham, Nicholas J.; Ekelund, Ulf; Brage, Søren (Journal article; Peer reviewed, 2014-05-20)Objective: The objective of this study is to examine the independent associations of time spent in moderate-to-vigorous physical activity (MVPA) and sedentary (SED-time), with total and abdominal body fat (BF), and the ... -
Prospective associations between sedentary time, sleep duration and adiposity in adolescents.
Collings, Paul J.; Wijndaele, Katrien; Corder, Kirsten; Westgate, Kate; Ridgway, Charlotte L.; Sharp, Stephen J.; Atkin, Andrew J.; Bamber, Diane; Goodyer, Ian; Brage, Søren; Ekelund, Ulf (Journal article; Peer reviewed, 2015-06)Objective: The objective of this study was to investigate whether objectively measured sedentary time and sleep duration are associated with changes in adiposity from mid- to late adolescence. Methods: Students ... -
Substituting prolonged sedentary time and cardiovascular risk in children and youth: a meta-analysis within the International Children’s Accelerometry database (ICAD)
Wijndaele, Katrien; White, Thomas; Andersen, Lars Bo; Bugge, Anna; Kolle, Elin; Northstone, Kate; Wedderkopp, Niels; Ried-Larsen, Mathias; Kriemler, Susi; Page, Angie S.; Puder, Jardena J.; Reilly, John J.; Sardinha, Luis B.; van Sluijs, Esther M.F.; Sharp, Stephen J.; Brage, Søren; Ekelund, Ulf (Peer reviewed; Journal article, 2019)Background: Evidence on the association between sitting for extended periods (i.e. prolonged sedentary time (PST)) and cardio-metabolic health is inconsistent in children. We aimed to estimate the differences in cardiometabolic ... -
The independent prospective associations of activity intensity and dietary energy density with adiposity in young adolescents
van Sluijs, Esther M. F.; Sharp, Stephen J.; Ambrosini, Gina L.; Cassidy, Aedin; Griffin, Simon J.; Ekelund, Ulf (Journal article; Peer reviewed, 2016-01-13)There is limited evidence on the prospective association of time spent in activity intensity (sedentary (SED), moderate (MPA) or vigorous (VPA) physical activity) and dietary intake with adiposity indicators in young people. ...