Adjusting milk intake for body size in early infancy

Davies, P.S.W., Wells, J.C.K. and Lucas, A. (1994) Adjusting milk intake for body size in early infancy. Early Human Development, 36 1: 61-67. doi:10.1016/0378-3782(94)90033-7


Author Davies, P.S.W.
Wells, J.C.K.
Lucas, A.
Title Adjusting milk intake for body size in early infancy
Journal name Early Human Development   Check publisher's open access policy
ISSN 0378-3782
1872-6232
Publication date 1994-01-01
Year available 1994
Sub-type Article (original research)
DOI 10.1016/0378-3782(94)90033-7
Open Access Status Not yet assessed
Volume 36
Issue 1
Start page 61
End page 67
Total pages 7
Place of publication Amsterdam, The Netherlands
Publisher Elsevier/North Holland
Language eng
Subject 1111 Nutrition and Dietetics
1114 Paediatrics and Reproductive Medicine
Abstract Energy intake and expenditure are related to body size and body composition and therefore must be taken into consideration when comparing individuals. Previous work has typically expressed energy metabolism variables per kilogram body weight or per kilogram fat-free mass. However this may not remove the effect of body size entirely. In infancy milk volume intake is usually expressed in a similar manner which may not be entirely appropriate. The most appropriate method of expressing milk volume intake relative to body weight and fat-free mass was investigated in 20 normal breast-fed infants at 6 weeks of age. Regression analysis revealed that the relationship between milk intake and body weight could be adjusted for by expressing milk intake per kg(0.68), and that the relationship between milk intake and fat-free mass could be adjusted for by expressing milk intake per kg(0.54). These values are not significantly different to 0.50 which is the square root of body weight. It is suggested that in studies of energy metabolism in infancy the expression of milk intake per kg(0.50) should be used as the most appropriate adjustment for removing the influence of body size upon milk intake, in the first few months of life.
Formatted abstract
Energy intake and expenditure are related to body size and body composition and therefore must be taken into consideration when comparing individuals. Previous work has typically expressed energy metabolism variables per kilogram body weight or per kilogram fat-free mass. However this may not remove the effect of body size entirely. In infancy milk volume intake is usually expressed in a similar manner which may not be entirely appropriate. The most appropriate method of expressing milk volume intake relative to body weight and fat-free mass was investigated in 20 normal breast-fed infants at 6 weeks of age. Regression analysis revealed that the relationship between milk intake and body weight could be adjusted for by expressing milk intake per kg0.68, and that the relationship between milk intake and fat-free mass could be adjusted for by expressing milk intake per kg0.54. These values are not significantly different to 0.50 which is the square root of body weight. It is suggested that in studies of energy metabolism in infancy the expression of milk intake per kg0.50 should be used as the most appropriate adjustment for removing the influence of body size upon milk intake, in the first few months of life.
Keyword Breast-feeding
Body Size
Fat-free Mass
Energy-expenditure
Requirements
Weight
Age
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Medicine Publications
 
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Created: Wed, 08 Sep 2010, 19:34:10 EST