Abstract
To examine the association between sedentary time (ST) and light physical activity (LPA), moderate- to vigorous-intensity physical activity (MVPA), and body mass index (BMI), and to track these behaviors over a 3-year follow-up in young schoolchildren. The final sample was 64 children (female: n = 36 or 56.3%), enrolled in schools in Porto, Portugal. Height and mass of children were measured by standard methods, and BMI was then calculated. ST, LPA, and MVPA were measured by accelerometer. Changes (Δ) and relative changes (Δ%) between 2009/2010 and 2012/2013 of ST, LPA, MVPA, and BMI were computed. Multiple linear regression analyses were fit to predict Δ%ST (outcome variable), by Δ%LPA, Δ%MVPA, and Δ%BMI (exposure variables). ST increased and LPA decreased significantly for whole sample (both Ps < .05). No statistically significant difference was found for MVPA over time. There were no differences for ΔST, ΔLPA, ΔMVPA, and ΔBMI between boys and girls. The Δ%LPA and Δ%MVPA were negatively associated with Δ%ST, whereas Δ%BMI was positively associated. Tracking coefficients varied from moderate to strong. Time spent in ST increases due to displacement of time in LPA. This reinforces public health measures and suggests the need fo...Continue Reading
References
Sep 20, 2005·American Journal of Preventive Medicine·Kathleen F JanzUNKNOWN Iowa Bone Development Study
Dec 30, 2006·PLoS Medicine·Ulf EkelundLars Bo Andersen
Aug 19, 2007·Behavior Research Methods·Franz FaulAxel Buchner
Dec 18, 2007·Nutrition, Metabolism, and Cardiovascular Diseases : NMCD·Juan Pablo Rey-LópezLuis A Moreno
Jan 22, 2008·The Journal of Pediatrics·Earl S Ford, Chaoyang Li
Mar 12, 2008·Obesity Reviews : an Official Journal of the International Association for the Study of Obesity·A S SinghM J M Chinapaw
Oct 25, 2008·Journal of Sports Sciences·Kelly R EvensonRobert G McMurray
Nov 5, 2008·Medicine and Science in Sports and Exercise·James J McClainCatrine Tudor-Locke
Jan 8, 2010·Obesity Facts·Risto Telama
Jan 23, 2010·Biologicals : Journal of the International Association of Biological Standardization·UNKNOWN WHO
Feb 5, 2010·Pediatric Exercise Science·Susana ValeJorge Mota
Mar 20, 2010·Diabetes Research and Clinical Practice·Hee-Taik KangYong-Jae Lee
Aug 5, 2010·Preventive Medicine·Stuart J H BiddleRock Braithwaite
Sep 15, 2010·Pediatrics·Kirsten CorderSimon J Griffin
Dec 7, 2010·Medicine and Science in Sports and Exercise·Stewart G TrostKarin A Pfeiffer
Dec 22, 2010·Pediatrics·Laura BasterfieldUNKNOWN Gateshead Millennium Study Core Team
Aug 13, 2011·British Journal of Sports Medicine·Russell R PateMarsha Dowda
Mar 21, 2012·International Journal of Obesity : Journal of the International Association for the Study of Obesity·J A MitchellP R Nader
Mar 28, 2012·Preventive Medicine·Gavin R H Sandercock, Ayodele A Ogunleye
Apr 21, 2012·American Journal of Preventive Medicine·Laura BasterfieldUNKNOWN Gateshead Millennium Study Core Team
May 9, 2012·Preventive Medicine·D AggioG R H Sandercock
Jun 30, 2012·PloS One·Mark S PearceUNKNOWN Gateshead Millennium Study Core Team
Jan 12, 2013·The Journal of Pediatrics·Soyang KwonKathleen F Janz
May 21, 2013·American Journal of Preventive Medicine·Rachel A JonesJo Salmon
Jul 11, 2013·PloS One·Andrew J AtkinEsther M F van Sluijs
Oct 10, 2013·Scandinavian Journal of Medicine & Science in Sports·S P CummingR M Malina
Nov 26, 2013·British Journal of Sports Medicine·Kirsten CorderEsther M F van Sluijs
Feb 7, 2014·European Journal of Pediatrics·Yan ZouJinshui Zhou
Jun 6, 2014·Obesity Reviews : an Official Journal of the International Association for the Study of Obesity·C TanakaW Y Huang
Jun 7, 2014·BMJ Open·Laura BasterfieldUNKNOWN Gateshead Millennium Study Core Team
Dec 30, 2014·International Journal of Environmental Research and Public Health·Shoo Thien LeeBee Koon Poh
Oct 11, 2015·The International Journal of Behavioral Nutrition and Physical Activity·Annabel S StierlinUNKNOWN DEDIPAC consortium
Feb 5, 2016·Preventive Medicine Reports·X JanssenJ J Reilly
Feb 26, 2016·Obesity Reviews : an Official Journal of the International Association for the Study of Obesity·D P CliffD R Lubans
May 12, 2016·BMC Pediatrics·Elin EvensenGuri Skeie
Nov 22, 2016·International Journal of Obesity : Journal of the International Association for the Study of Obesity·F V CureauB D Schaan
Dec 9, 2016·Childhood Obesity·Marsha DowdaRussell R Pate
Jan 14, 2017·The Journal of Pediatrics·Dorothea DumuidUNKNOWN International Study of Childhood Obesity, Lifestyle and the Environment (ISCOLE) research group