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Peak BMC Growth and Calcium Requirements for Children

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Nutritional Influences on Bone Health

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Abstract

Dietary Reference Intakes (DRIs) for calcium include the Estimated Average Requirement (EAR) and the Recommended Daily Allowance (RDA). These are estimates of the mean and the mean plus two standard deviations of the distribution of requirements for a particular subpopulation defined by sex and age. The distribution is assumed to be normal with a standard deviation that is 10% of the mean. Using longitudinal total body bone mineral content (TBBMC) data collected on a large sample of children, we have developed a parametric statistical model for the distribution of the relationship between TBBMC and age. By taking its derivative with respect to age, we obtain the distribution of the relationship between growth velocity, in terms of change in TBBMC, and age. Various other distributions are easily computed, including the distribution of the peak BMC growth velocity and the distribution of the age at peak BMC growth velocity. We use these distributions to conclude that the current procedure used to set the DRIs for calcium does not adequately take into account the variability in the patterns of growth of children due to the need for calcium associated with peak BMC growth velocity.

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Author information

Authors and Affiliations

  1. Department of Mathematics and Statistics, Oakland University, Rochester, MI, USA

    Michael R. Lawlor

  2. Department of Nutrition Science, Purdue University, West Lafayette, IN, USA

    Connie M. Weaver

  3. Department of Statistics, Purdue University, West Lafayette, IN, USA

    Bruce A. Craig & George P. McCabe

  4. College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK, Canada

    Susan J. Whiting & Hassanali Vatanparast

  5. College of Kinesiology, University of Saskatchewan, Saskatoon, SK, Canada

    Adam D. G. Baxter-Jones

Authors
  1. Michael R. Lawlor
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  2. Connie M. Weaver
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  3. Bruce A. Craig
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  4. Susan J. Whiting
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  5. Adam D. G. Baxter-Jones
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  6. Hassanali Vatanparast
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  7. George P. McCabe
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Corresponding author

Correspondence to George P. McCabe .

Editor information

Editors and Affiliations

  1. Nutrition and Science, Purdue University, West Lafayette, IN, USA

    Connie M. Weaver

  2. Geriatrics and Aging Research, University of Zurich, Zurich, Switzerland

    Heike Bischoff-Ferrari

  3. Institute for Physical Activity and Nutrition, Deakin University , Melbourne, VIC, Australia

    Robin M. Daly

  4. Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong

    Man-Sau Wong

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Lawlor, M.R. et al. (2019). Peak BMC Growth and Calcium Requirements for Children. In: Weaver, C., Bischoff-Ferrari, H., Daly, R., Wong, MS. (eds) Nutritional Influences on Bone Health. Springer, Cham. https://doi.org/10.1007/978-3-319-98464-3_4

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  • DOI: https://doi.org/10.1007/978-3-319-98464-3_4

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-98463-6

  • Online ISBN: 978-3-319-98464-3

  • eBook Packages: MedicineMedicine (R0)

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