The influence of dairy consumption, sedentary behaviour and physical activity on bone mass in Flemish children: a cross-sectional study

BMC Public Health

Research Article

Stefan Goemaere¹  Inge Roggen²  Jean Deschepper³  Stephanie De Smet⁴  Nathalie Michels⁴  Carolien Polfliet⁴  Stefaan De Henauw⁵  Isabelle Sioen⁶  Sara D’Haese⁷  Jara Valtueña⁸ 

[1] Department of Endocrinology, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium;Unit for Osteoporosis and Metabolic Bone Diseases, Ghent University Hospital, Ghent, Belgium;Department of Pediatrics, Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel, Brussels, Belgium;Department of Pediatrics, Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel, Brussels, Belgium;Department of Pediatrics, Ghent University Hospital, Ghent, Belgium;Department of Public Health, Faculty of Medicine and Health Sciences, Ghent University, 4K3, De Pintelaan 185, B-9000, Ghent, Belgium;Department of Public Health, Faculty of Medicine and Health Sciences, Ghent University, 4K3, De Pintelaan 185, B-9000, Ghent, Belgium;Department of Health Sciences, Vesalius, University College Ghent, Ghent, Belgium;Department of Public Health, Faculty of Medicine and Health Sciences, Ghent University, 4K3, De Pintelaan 185, B-9000, Ghent, Belgium;FWO, Research Foundation Flanders, Egmontstraat 5, 1000, Brussels, Belgium;FWO, Research Foundation Flanders, Egmontstraat 5, 1000, Brussels, Belgium;Department of Movement and Sport Sciences, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium;ImFine Research Group, Department of Health and Human Performance, Faculty of Physical Activity and Sport Sciences, Universidad Politécnica de Madrid, Madrid, Spain;

关键词: Bone mineral content (BMC);    Areal bone mineral density (aBMD);    Children;    Dairy consumption;    Dual-energy X-ray absorptiometry (DXA);    Physical activity;    Sedentary behaviour;   

DOI  :  10.1186/s12889-015-2077-7

 received in 2014-05-13, accepted in 2015-07-21,  发布年份 2015

来源: Springer

【 摘 要 】

BackgroundThis cross-sectional study aimed to look for an association in young children between whole body bone mineral content (BMC) and areal bone mineral density (aBMD) and dairy consumption as well as sedentary behaviour (SB) and physical activity (PA). Moreover, we investigated whether there was an interaction effect between dairy consumption and SB or PA on BMC and aBMD.MethodsHealthy children (6-12 years) were recruited from primary schools. Body composition and whole body bone mass were measured with dual-energy X-ray absorptiometry (DXA), dairy consumption was assessed with a food frequency questionnaire (FFQ) and PA and SB with an accelerometer. In total, 272 children underwent a DXA scan. Complete FFQ data were available for 264 children and 210 children had matching data from accelerometry recordings. Regression analyses were used to study the associations between (1) BMC and aBMD and (2) dairy consumption, SB and PA, adjusting for age, gender, pubertal stage, height and body composition.ResultsDairy consumption was positively associated with whole body BMC and aBMD (absolute value as well as z-score), after correction for relevant confounders. SB was negatively associated with aBMD z-score and light PA was positively associated with both BMC and aBMD z-score. No gender differences were found. Moreover, an interaction effect between vigorous PA (VPA) and dairy consumption on aBMD (z-score) and BMC z-score was found, indicating that children with both high VPA and high dairy consumption had higher values for BMC and aBMD of the whole body minus the head.ConclusionAlready at young age, PA and dairy consumption positively influence whole body bone mass assessed by DXA. Moreover, this study indicates clearly that SB is negatively associated with whole body bone density. Promoting regular PA and sufficient dairy consumption in young children and limiting SB can be expected to positively influence their bone mass accumulation, which can help in the prevention of osteoporosis later in life.

【 授权许可】

CC BY   
© Sioen et al. 2015