Teun Remmers

Relationship between PA and the development of BMI in children | 29 Acknowledgments This study was partially supported by the Netherlands Heart Foundation, (grant no. 2008B112 to E.F.C. Sleddens). Results of the present study do not constitute endorsement by ACSM. The authors declare that they have no competing interest. References 1 Akinbami LJ, Ogden CL. Childhood overweight prevalence in the United States: the impact of parent-reported height and weight. Obesity. 2009;17(8):1574-80. 2 Basterfield L, Adamson AJ, Frary JK, Parkinson KN, Pearce MS, Reilly JJ. Longitudinal study of physical activity and sedentary behavior in children. Pediatrics. 2011;127(1):24-30. 3 Cliff DP, Reilly JJ, Okely AD. Methodological considerations in using accelerometers to assess habitual physical activity in children aged 0-5 years. Journal of Science and Medicine in Sport. 2009;12(5):557-67. 4 Cole TJ, Bellizzi MC, Flegal KM, Dietz WH. Establishing a standard definition for child overweight and obesity worldwide: international survey. British Medical Journal. 2000;320(7244):1240. 5 Corder K, Brage SR, Ramachandran A, Snehalatha C, Wareham N, Ekelund U. Comparison of two Actigraph models for assessing free-living physical activity in Indian adolescents. Journal of Sports Sciences. 2007;25(14):1607-11. 6 Cremers E, Thijs C, Penders J, Jansen E, Mommers M. Maternal and child's vitamin D supplement use and vitamin D level in relation to childhood lung function: the KOALA Birth Cohort Study. Thorax. 2011;66(6):474-80. 7 Daniels SR. The consequences of childhood overweight and obesity. Future of Children. 2006;16(1):47-67. 8 de Vries SI, Bakker I, Hopman-Rock M, Hirasing RA, van Mechelen W. Clinimetric review of motion sensors in children and adolescents. Journal of Clinical Epidemiology. 2006;59(7):670-80. 9 Dietz W. Critical periods in childhood for the development of obesity. American Journal of Clininical Nutrition. 1994;59(5):955-9. 10 Ekelund U, Sjöström M, Yngve A, Poortvliet E, Nilsson A, Froberg K, et al. Physical activity assessed by activity monitor and doubly labeled water in children. Medicine & Science in Sports & Exercise. 2001;33(2):275-81. 11 Erickson SJ, Robinson TN, Haydel KF, Killen JD. Are overweight children unhappy?: Body mass index, depressive symptoms, and overweight concerns in elementary school children. Archives of Pediatrics and Adolescent Medicine. 2000;154(9):931. 12 Evenson KR, Catellier DJ, Gill K, Ondrak KS, McMurray RG. Calibration of two objective measures of physical activity for children. Journal of Sport Sciences. 2006;24(14):1557-65.