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Comparison of measured sleeping metabolic rate and predicted basal metabolic rate in the first year of life
Author(s) -
Wells JCK,
Joughin C,
Crisp JA,
Cole TJ,
Davies PSW
Publication year - 1996
Publication title -
acta paediatrica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 115
eISSN - 1651-2227
pISSN - 0803-5253
DOI - 10.1111/j.1651-2227.1996.tb14208.x
Subject(s) - basal metabolic rate , anthropometry , medicine , metabolic rate , zoology , body weight , mathematics , endocrinology , biology
In infants, sleeping metabolic rate (SMR) is used as a proxy for basal metabolic rate (BMR). BMR can be predicted from anthropometry using published equations. Our study was intended to evaluate the ability of these equations to predict measured SMR in infants aged 6 weeks to 12 months. SMR was measured in a mixed longitudinal study using the Douglas bag technique ( n = 105). Measured SMR values were compared with BMR predicted from weight (BMR‐1) or weight and length (BMR‐2). These equations were not successful in predicting SMR in this age group. Percentage error of predicted BMR was related to infant weight (BMR‐1: r = 0.26; p < 0.005; BMR‐2: r = 0.18; p < 0.06). Alternative logarithmic equations were derived from this study (R = 0.84‐0.87; SEE = 0.159‐0.168). We conclude that the new equations, relating to contemporary infants, are more suitable but actual measurements remain preferred.