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Relationship between behavior and energy expenditure in 12‐week‐old infants
Author(s) -
Wells J. C. K.,
Davies Peter S. W.
Publication year - 1996
Publication title -
american journal of human biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.559
H-Index - 81
eISSN - 1520-6300
pISSN - 1042-0533
DOI - 10.1002/(sici)1520-6300(1996)8:4<465::aid-ajhb6>3.0.co;2-x
Subject(s) - energy expenditure , doubly labeled water , physical activity , energy (signal processing) , total energy expenditure , energy cost , energy metabolism , temperament , psychology , developmental psychology , medicine , physical therapy , economics , endocrinology , statistics , social psychology , mathematics , environmental economics , personality
Abstract In order to apply current international recommendations of basing energy requirements on energy expenditures (FAO/WHO/UNU [1985] Energy and Protein Requirements WHO: Geneva) to infants, it is first necessary to ascertain which aspects of infant physical activity significantly influence energy expenditure. The relationship between behavioral activity and energy expenditure was, therefore, investigated in 12 week infants. Behavior was assessed using activity diaries, temperament questionnaires, and actometers. Total energy expenditure and the energy cost of physical activity were estimated using the doubly labelled water method and indirect calorimetry. Certain aspects of behavior correlated significantly with the energy cost of physical activity. Behavior thus exerts a significant effect on energy expenditure in 12 week infants. © 1996 Wiley‐Liss, Inc.