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  • Title: The effect of positioning on energy expenditure in preterm infants: a feasibility study.
    Author: Dollberg S, Yacov G, Mimouni FB, Barak M.
    Journal: Am J Perinatol; 2004 Oct; 21(7):391-4. PubMed ID: 15476129.
    Abstract:
    The aim of this study was to determine the feasibility of a study of the effect of positioning on energy expenditure in preterm infants. We performed a prospective, randomized, clinical cross-over pilot study of eight healthy, appropriate weight for gestational age, gavage-fed, clinically stable preterm infants at the postmenstrual age of 30 weeks. Prior to the study and in accord with our feeding protocol, infants uniformly received either their own mother's milk or a preterm formula. Each infant was studied in four different positions after randomization to eight different sequences. Infants were studied asleep, 90 minutes after feeding, after 20 minutes of being nursed in a given position. They were cared for in a servo-controlled convective incubator during the metabolic measurements, which were performed by indirect calorimetry. Energy expenditure was not significantly affected by the body position in which the infant was studied. The difference between the highest and the lowest mean energy expenditure was 3.7% of the highest one. We conclude that attempts to minimize energy expenditure by modifying infant positioning are likely to be insignificant, from a practical standpoint, because of the nonsignificant or minimal differences in energy expenditure.
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