OBJECTIVE: To compare the physical activity patterns of a cohort of Mexican children in kindergarten (K), first (1ES) and second grade (2ES) of elementary school. MATERIAL AND METHODS: The physical activity of 217 children (123 girls and 94 boys) aged 5-6 years was measured (five full-day triaxial accelerometry) annually.Weekday and weekend moderate/ vigorous physical activity (MVPA) and school and off-school MVPA was calculated. Comparisons between surveys were made using longitudinal multilevel generalized linear models. RESULTS: Weekday MVPA was 22 and 37 min/d lower for 1ES (p=0.06) and 2ES (p<0.01), respectively, compared to K. School MVPA for 1ES and 2ES was 37 (-5.0 min/h) and 40% (-5.5 min/h) (p<0.001) lower, respectively, compared to K. No differences were found between weekend and off-school MVPA among school stages (p>0.5). CONCLUSION: MVPA was significantly reduced from K to ES,in part because of a decline in MVPA during school activities. Interventions targeted to school environment modifications should be promoted.
OBJECTIVE: To compare the physical activity patterns of a cohort of Mexican children in kindergarten (K), first (1ES) and second grade (2ES) of elementary school. MATERIAL AND METHODS: The physical activity of 217 children (123 girls and 94 boys) aged 5-6 years was measured (five full-day triaxial accelerometry) annually.Weekday and weekend moderate/ vigorous physical activity (MVPA) and school and off-school MVPA was calculated. Comparisons between surveys were made using longitudinal multilevel generalized linear models. RESULTS: Weekday MVPA was 22 and 37 min/d lower for 1ES (p=0.06) and 2ES (p<0.01), respectively, compared to K. School MVPA for 1ES and 2ES was 37 (-5.0 min/h) and 40% (-5.5 min/h) (p<0.001) lower, respectively, compared to K. No differences were found between weekend and off-school MVPA among school stages (p>0.5). CONCLUSION: MVPA was significantly reduced from K to ES,in part because of a decline in MVPA during school activities. Interventions targeted to school environment modifications should be promoted.
Authors: Joyce A Mantjes; Andrew P Jones; Kirsten Corder; Natalia R Jones; Flo Harrison; Simon J Griffin; Esther M F van Sluijs Journal: Int J Behav Nutr Phys Act Date: 2012-12-31 Impact factor: 6.457
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Authors: Hannah L Brooke; Andrew J Atkin; Kirsten Corder; Ulf Ekelund; Esther M F van Sluijs Journal: J Sci Med Sport Date: 2014-10-16 Impact factor: 4.319
Authors: Francisco B Ortega; Kenn Konstabel; Elena Pasquali; Jonatan R Ruiz; Anita Hurtig-Wennlöf; Jarek Mäestu; Marie Löf; Jaanus Harro; Rino Bellocco; Idoia Labayen; Toomas Veidebaum; Michael Sjöström Journal: PLoS One Date: 2013-04-23 Impact factor: 3.240