Comparison of measured sleeping metabolic rate and predicted basal metabolic rate during the first year of life: evidence of a bias changing with increasing metabolic rate

Reichman, C. A.; Shepherd, Ross W.; Trocki, O.; Cleghorn, G. J.; Davies, Peter S. W.

doi:10.1038/sj.ejcn.1601372

Cited by 9 publications

(12 citation statements)

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“…In infants, sleeping energy expenditure is used as a proxy for REE due to the practical considerations of measuring energy expenditure in this age group. 24 The metabolic cart measures infant respiratory gas exchange of oxygen consumption (VO 2 ) and carbon dioxide production (VCO 2 ) in 1-minute intervals. The initial period of infant adjustment and any period of significant movement that altered REE were extracted prior to analysis.…”

Section: Anthropometric Measurementsmentioning

confidence: 99%

Resting Energy Expenditure at 3 Months of Age Following Neonatal Surgery for Congenital Heart Disease

et al. 2013

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Objective Infants with Congenital Heart Disease (CHD) often exhibit growth failure. This can affect anthropometric and neurodevelopmental outcomes well into childhood. To determine the resting energy expenditure (REE), body composition, and growth in infants with CHD at 3 months of age, with the secondary aim to identify predictors of REE as compared to healthy infants. Design and Methods This descriptive study is a sub-analysis of a prospective study investigating predictors of growth in postoperative infants with CHD compared to healthy infants. Growth measurements, REE, and body composition were obtained in all infants. Analysis included chi-square for association between categorical variables, t-tests, ANOVA and ANCOVA. Outcome measures included the REE as determined by indirect calorimetry, anthropometric z-scores and body composition at 3-months of age. Setting Participants were recruited from the Cardiac Intensive Care Unit of a large, urban, pediatric cardiac center and pediatric primary care practices. Results The analysis included 93 infants, 44 (47%) with CHD. Of the infants with CHD, 39% had single ventricle (SV) physiology. There was no difference in REE related to cardiac physiology between infants with CHD and healthy infants or between infants with SV and biventricular (BV) physiology. Anthropometric z-scores for weight (−1.1 ± 1.1, p<0.001), length (−0.7 ± 1.1, p<0.05) and head circumference (−0.6 ± 1.2, p<0.001) were lower in infants with CHD at 3-months of age. The % body fat (%FAT) in postoperative infants with SV (24% ± 6, p=0.02) and BV (23% ± 5, p<0.001) physiology were lower than healthy infants (27% ± 5), with no difference in REE. Conclusion At 3-months of age, there was no difference in REE between postsurgical infants with CHD and healthy infants. Infants with CHD had lower growth z-scores and %FAT. These data demonstrate decreased %FAT contributed to growth failure in the infants with CHD.

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Section: Anthropometric Measurementsmentioning

confidence: 99%

Resting Energy Expenditure at 3 Months of Age Following Neonatal Surgery for Congenital Heart Disease

et al. 2013

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“…By the age of 1 year, the growth rate constant sharply (by more than one order of magnitude) decreases and becomes 0.3. At the same time, the basal metabolic rate at the age of 1 year reaches the highest values [31,32]. Spe cial calculations [33] showed that the actual expenses for the syntheses associated with the growth processes even in the first 3 months of life, when the growth rate of the child is maximum, are not more than 20 kcal/day, that is 7-8% of the basal metabolism or 2-3% of the daily energy expenditure of the body.…”

Section: Causes Of Age Related Changes In Energy Metabolismmentioning

confidence: 87%

“…Then, the intensity of energy metabolism stabilizes at a level characteristic of adults. Long term observa tions showed that all these changes are observed in both boys and girls, but in girls they occur, an average, 0.5-1 year earlier [32]. Thus, the facts testify to the reciprocal relationships between the intensity of met abolic and growth processes [37]-exactly the oppo site conclusion as compared to the widespread and seemingly obvious point of view.…”

Section: Relationships Between Energy and Growth Processesmentioning

confidence: 97%

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Energetics of child’s organism: Qualitative and quantitative specifics

Сонькин

2014

Hum Physiol

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The review summarizes data on the age related transformations of energy metabolism observed in the human ontogeny from birth to maturity. It is shown that elevated level of basal energy consumptions of a child is not associated with the activity of growth processes. Upon maturing the body structures, qualitative changes of metabolic processes are observed, which generally lead to economizing and expanding the func tional range. At the same time, the specialized structures (brown adipose tissue) that ensure energy dissipa tion and are thereby involved in maintaining homeostasis are usually retained even in adults. It is assumed that the increased metabolic rate in childhood forms the body's resistance due to the "gyroscopic effect" and thus allows safely overcoming the most strained and important stages of ontogeny.

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“…These differences contribute to the quality loss of diet or physical exercise programs, which may be harmful to the population's health. The inadequation of the BEE estimation equations for specific populations, such as the Brazilian and Australian ones, ends up bringing dissatisfaction and discredit to the given services besides disturbing their aims, as weight body composition control [9][10][11][12][13][14][15] . The aim of this study was to compare the results of the BEE estimated by mathematical equations proposed by Harris-Benedict …”

Section: Introductionmentioning

confidence: 99%