Practical utility and reliability of whole-room calorimetry in young children

Xanne Janssen, Dylan Cliff, Anthony D. Okely, Rachel A. Jones, Marijka Batterham, Ulf Ekelund, Soren Brage, John J. Reilly

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The use of whole-room calorimetry (WRC) in young children can increase our understanding of children's energy balance. However, studies using WRC in young children are rare due to concerns about its feasibility. To assess the feasibility of WRC in young children, forty children, aged 4-6 years, were asked to follow a graded activity protocol while in a WRC. In addition, six children participated in two additional resting protocols to examine the effect of diet-induced thermogenesis on resting energy expenditure (REE) measures and the reliability of REE measurement. Refusals to participate and data loss were quantified as measures of practical utility, and REE measured after an overnight fast and after a 90-min fast were compared. In addition, both were compared to predicted BMR values using the Schofield equation. Our results showed that thirty (78·9 %) participants had acceptable data for all intensities of the activity protocol. The REE values measured after a 90-min fast (5·07 (sd 1·04) MJ/d) and an overnight fast (4·73 (sd 0·61) MJ/d) were not significantly different from each other (P = 0·472). However, both REE after an overnight fast and a 90-min fast were significantly higher than predicted BMR (3·96 (sd 0·18) MJ/d) using the Schofield equation (P = 0·024 and 0·042, respectively). We conclude that, with a developmentally sensitive approach, WRC is feasible and can be standardised adequately even in 4- to 6-year-old children. In addition, the effect of a small standardised breakfast, approximately 90 min before REE measurements, is likely to be small.
LanguageEnglish
Pages1917-1922
Number of pages6
JournalBritish Journal of Nutrition
Volume109
Issue number10
Early online date19 Sep 2012
DOIs
Publication statusPublished - 31 May 2013

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Calorimetry
Energy Metabolism
Refusal to Participate
Breakfast
Thermogenesis
Diet

Keywords

  • activity energy expenditure
  • energy metabolism
  • preschool children
  • resting energy expenditure

Cite this

Janssen, Xanne ; Cliff, Dylan ; Okely, Anthony D. ; Jones, Rachel A. ; Batterham, Marijka ; Ekelund, Ulf ; Brage, Soren ; Reilly, John J. / Practical utility and reliability of whole-room calorimetry in young children. In: British Journal of Nutrition. 2013 ; Vol. 109, No. 10. pp. 1917-1922.
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Janssen, X, Cliff, D, Okely, AD, Jones, RA, Batterham, M, Ekelund, U, Brage, S & Reilly, JJ 2013, 'Practical utility and reliability of whole-room calorimetry in young children' British Journal of Nutrition, vol. 109, no. 10, pp. 1917-1922. https://doi.org/10.1017/S0007114512003820

Practical utility and reliability of whole-room calorimetry in young children. / Janssen, Xanne; Cliff, Dylan; Okely, Anthony D.; Jones, Rachel A.; Batterham, Marijka; Ekelund, Ulf; Brage, Soren; Reilly, John J.

In: British Journal of Nutrition, Vol. 109, No. 10, 31.05.2013, p. 1917-1922.

Research output: Contribution to journalArticle

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