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close this bookActivity, Energy Expenditure and Energy Requirements of Infants and Children (International Dietary Energy Consultative Group - IDECG, 1989, 412 pages)
close this folderEnergy cost of communicable diseases in infancy and childhood
View the document(introductory text...)
View the documentAbstract
View the document1. Introduction
View the document2. Variation in morbidity from infectious disease
Open this folder and view contents3. Effects of infection on energy status
View the document4. Reduced activity
View the document5. Energy requirements for recovery from infection
View the document6. Anabolic response
View the documentReferences
View the documentDiscussion (summarized by B. Schürch)

4. Reduced activity

TORUN and VITERI (1981) observed the dietary intake and activity of a group of children fed ad libitum in a convalescent home with facilities for active play. When they lowered their food intake by 10%, the children promptly reduced their physical activity sufficiently to come into energy balance. With a 20% reduction in calories, growth was also affected.

Children who are sick spontaneously decrease their activity and may be confined to bed. This represents a reduction in energy requirement that carries no biological penalty over a limited period. The average requirements are 1.1 x BMR for Lying down, 1.2 x BMR for sitting, 1.4 x BMR for standing and 2.2 x BMR for walking or moving about. Assuming 4 hours of sitting and 2 hours of standing instead of 6 hours of walking and other play activity, the energy savings of 15% would help to compensate for some of the factors increasing requirements.