Only an occasional report of twenty-four hour measurements of the energy exchange of infants is available in the literature. The published list comprises three observations by Rubner and Heubner1 and two by Talbot2a on normal infants. Actual balance studies of the total energy requirements of normal infants inclusive of their needs for growth are missing from the literature. The only studies of this nature which are available are those on two premature infants reported by Rubner and Langstein in 1915.2b This paucity of data is undoubtedly ascribable to the many technical difficulties inherent in prolonged measurements of the respiratory metabolism of infants and in concurrent analyses of their diet and excreta. Despite these obstacles, such balance studies are imperative, since the modern systems of feeding infants are predicated in large part on an accurate knowledge of their daily energy needs.
The energy supplements which combine to make
LEVINE SZ, McEACHERN TH, WHEATLEY MA, MARPLES E, KELLY MD. RESPIRATORY METABOLISM IN INFANCY AND IN CHILDHOOD: XV. DAILY ENERGY REQUIREMENTS OF NORMAL INFANTS. Am J Dis Child. 1935;50(3):596–620. doi:10.1001/archpedi.1935.01970090026003
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