Measurement of resting energy expenditure in infants

Journal of Paediatrics and Child Health
J E Bines, H D Truby

Abstract

The method for measurement of basal metabolic rate (BMR) using indirect calorimetry in adults is well established but is impractical in infants. In this prospective study energy expenditure was measured using indirect calorimetry in 14 infants when sleeping and when lying quietly awake. Sleeping metabolic rate (SMR) was lower than energy expenditure (EE) measured in the same infants in a quiet resting state (mean difference [SD]: 297 [162] kJ/d; P < 0.005; 55 [33.4] kJ/kg per day; P < 0.005). The correlation within individuals suggests that these differences are related to the level of arousal. Awake EE, but not SMR, was significantly greater than estimated BMR using the FAO/WHO/UNU predictive equation. In infants, the level of arousal during measurement of EE can significantly impact on the interpretation of EE results. A standardized method for the measurement of EE in infants using indirect calorimetry is proposed.

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Citations

Jan 11, 2012·Endocrine Journal·Yukiko NishimotoShuichi Miyatani
Aug 4, 2012·Nutrition in Clinical Practice : Official Publication of the American Society for Parenteral and Enteral Nutrition·Ulf ElbeltHerbert Lochs
Jun 14, 2006·The British Journal of Nutrition·Mirjam P E Wouters-Adriaens, Klaas R Westerterp
Dec 1, 2021·Obesity Reviews : an Official Journal of the International Association for the Study of Obesity·Jerod M RasmussenPathik D Wadhwa

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