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Nutrients 2016, 8(4), 238; doi:10.3390/nu8040238

An Evaluation of the Pea Pod System for Assessing Body Composition of Moderately Premature Infants

1
Department of Clinical and Experimental Medicine, Linköping University, SE-581 83 Linköping, Sweden
2
Department of Clinical Sciences, Lund University, SE-221 85 Lund, Sweden
*
Author to whom correspondence should be addressed.
Received: 4 February 2016 / Revised: 8 April 2016 / Accepted: 15 April 2016 / Published: 22 April 2016
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Abstract

(1) Background: Assessing the quality of growth in premature infants is important in order to be able to provide them with optimal nutrition. The Pea Pod device, based on air displacement plethysmography, is able to assess body composition of infants. However, this method has not been sufficiently evaluated in premature infants; (2) Methods: In 14 infants in an age range of 3–7 days, born after 32–35 completed weeks of gestation, body weight, body volume, fat-free mass density (predicted by the Pea Pod software), and total body water (isotope dilution) were assessed. Reference estimates of fat-free mass density and body composition were obtained using a three-component model; (3) Results: Fat-free mass density values, predicted using Pea Pod, were biased but not significantly (p > 0.05) different from reference estimates. Body fat (%), assessed using Pea Pod, was not significantly different from reference estimates. The biological variability of fat-free mass density was 0.55% of the average value (1.0627 g/mL); (4) Conclusion: The results indicate that the Pea Pod system is accurate for groups of newborn, moderately premature infants. However, more studies where this system is used for premature infants are needed, and we provide suggestions regarding how to develop this area. View Full-Text
Keywords: body composition; fat-free mass density; isotope dilution; Pea Pod; premature infants; three-component model body composition; fat-free mass density; isotope dilution; Pea Pod; premature infants; three-component model
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Forsum, E.; Olhager, E.; Törnqvist, C. An Evaluation of the Pea Pod System for Assessing Body Composition of Moderately Premature Infants. Nutrients 2016, 8, 238.

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