Free-living energy expenditure and behaviour in late infancy

Wells, J.C.K., Hinds, A. and Davies, P.S.W. (1997) Free-living energy expenditure and behaviour in late infancy. Archives of Disease in Childhood, 76 6: 490-494. doi:10.1136/adc.76.6.490


Author Wells, J.C.K.
Hinds, A.
Davies, P.S.W.
Title Free-living energy expenditure and behaviour in late infancy
Journal name Archives of Disease in Childhood   Check publisher's open access policy
ISSN 0003-9888
1468-2052
Publication date 1997-06
Sub-type Article (original research)
DOI 10.1136/adc.76.6.490
Volume 76
Issue 6
Start page 490
End page 494
Total pages 5
Place of publication London, England
Publisher BMJ Publishing Group
Language eng
Subject 1111 Nutrition and Dietetics
1114 Paediatrics and Reproductive Medicine
Formatted abstract
Objectives -
The energy requirements of infants are determined by body size, growth rate, and physical activity. Little is known of the determinants of energy expended on activity. The relation between free-living energy expenditure and behaviour was investigated in infants aged 9 and 12 months.

Methods -
Total energy expenditure (TEE) was estimated by the doubly labelled water method and fat free mass was estimated from the 18O dilution space. Behaviour was assessed by two 24 hour activity diaries. Subjects-Thirty four normal healthy infants.

Results -
TEE was negatively related to the time spent feeding and negatively related to the time spent upset. Body size, represented by fat free mass, accounted for only 19% of the variation in TEE, whereas the combination of fat free mass and two behavioral variables explained 46% of the variation in TEE.

Conclusions-

Behaviour contributed significantly to TEE. The energy requirements of individual subjects in this age group cannot be predicted with accuracy from body size alone.
Keyword Energy Requirements
Body-composition
Fat Free Mass
Doubly-labeled-water
(H2O)-H-2-O-18 Method
Indirect Calorimetry
Physical-activity
Preterm Infants
Children
Birth
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, 09:38:17 EST