THE RESPIRATORY METABOLISM IN INFANCY AND IN CHILDHOOD

Abstract
The present study of the effect of food on the heat production of normal infants was made preliminary to a similar study of marantic infants in an effort to answer the question, Does food stimulate metabolism excessively in marasmus? If so, this excessive specific dynamic action may play a rôle in the failure of some marantic infants to gain weight even while on a caloric intake considerably in excess of the computed energy requirement and in the absence of evident infection. The present paper reports the results of the normal controls. The results for the athreptic infants will appear in a later communication. REVIEW OF THE LITERATURE C. Voit,1 Magnus-Levy2 and Rubner3 were among the first to show that the ingestion of food augments metabolism. Later observers unanimously confirmed this. It remained, however, for Lusk4 to clarify the doctrine of the specific dynamic action of individual

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