Document Detail

Free-living energy expenditure and behaviour in late infancy.
MedLine Citation:
PMID:  9245844     Owner:  NLM     Status:  MEDLINE    
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 behavioural 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.
J C Wells; A Hinds; P S Davies
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Archives of disease in childhood     Volume:  76     ISSN:  1468-2044     ISO Abbreviation:  Arch. Dis. Child.     Publication Date:  1997 Jun 
Date Detail:
Created Date:  1997-08-14     Completed Date:  1997-08-14     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  0372434     Medline TA:  Arch Dis Child     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  490-4     Citation Subset:  AIM; IM    
Infant and Child Nutrition Group, Dunn Nutrition Unit, Cambridge.
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MeSH Terms
Body Constitution / physiology
Energy Metabolism*
Feeding Behavior / physiology
Infant Behavior / physiology*
Physical Exertion / physiology

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