Journal article

The "Goldilocks Day" for Children's Skeletal Health: Compositional Data Analysis of 24-Hour Activity Behaviors

Dorothea Dumuid, Peter Simm, Melissa Wake, David Burgner, Markus Juonala, Feitong Wu, Costan G Magnussen, Timothy Olds

Journal of Bone and Mineral Research | WILEY | Published : 2020

Abstract

Optimization of children's activity behaviors for skeletal health is a key public health priority, yet it is unknown how many hours of moderate to vigorous physical activity (MVPA), light physical activity (LPA), sedentary behavior, or sleep constitute the best day-the "Goldilocks Day"-for children's bone structure and function. To describe the best day for children's skeletal health, we used data from the cross-sectional Child Health CheckPoint. Included participants (n = 804, aged 10.7 to 12.9 years, 50% male) underwent tibial peripheral quantitative CT to assesses cross-sectional area, trabecular and cortical density, periosteal and endosteal circumference, polar moment of inertia, and po..

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Grants

Awarded by National Health and Medical Research Council (NHMRC)


Awarded by National Heart Foundation of Australia


Awarded by NHMRC


Awarded by Royal Children's Hospital Foundation


Awarded by Financial Markets Foundation for Children


Funding Acknowledgements

The authors disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: DD is supported by the National Health and Medical Research Council (NHMRC) (Early Career Fellowship 1162166) and the National Heart Foundation of Australia (102084). MW is supported by the NHMRC (Principal Research Fellowship 1160906). DB is supported by an NHMRC Investigator Grant (1175744). FW is supported by the NHMRC (Early Career Fellowship 1158661). The Child Health CheckPoint was supported by the NHMRC (Project Grants 1041352, 1109355), The Royal Children's Hospital Foundation (2014-241), the Murdoch Children's Research Institute (MCRI), The University of Melbourne, the National Heart Foundation of Australia (100660), and the Financial Markets Foundation for Children (2014-055, 2016-310). Research at the MCRI is supported by the Victorian Government's Operational Infrastructure Support Program.