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Diet and infant behavior
Author(s) -
Klerk A.,
Schulze KF,
Kashyap S.,
Sahni R.,
Fifer W.,
Myers M.
Publication year - 1997
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.1651-2227.1997.tb18348.x
Subject(s) - medicine , gestation , heart rate , energy expenditure , gestational age , zoology , balance (ability) , pediatrics , physiology , pregnancy , physical therapy , biology , genetics , blood pressure
We studied 142 preterm infants (mean gestation 31 weeks, mean birthweight 1364 g) fed prospectively varied protein and energy intakes. Infants were grouped as either slow or rapid growers based on rate of weight gain. Rapid growers had increased heart rates (166 vs 160 beats/min), respiratory rates (55.7 vs 53.9 bpm), energy expenditure (64.8 vs 61.6 kcal kg −1 day −1 ), urinary C‐peptide levels (1.59 vs 0.79 ng ml −1 ) and time in active sleep (78.0 vs 75.2%), and decreased spectral edge frequency in the electroencephalogram (2.96 vs 4.45 Hz) compared to slow growers. We conclude that preterm infants growing at varying rates manifest physiological and behavioral differences, and that these patterns may reflect altered autonomic balance.