Sleeping metabolic rate and body size in 12-week-old infants

Wells, J.C.K. and Davies, P.S.W. (1995) Sleeping metabolic rate and body size in 12-week-old infants. European Journal of Clinical Nutrition, 49 5: 323-328.


Author Wells, J.C.K.
Davies, P.S.W.
Title Sleeping metabolic rate and body size in 12-week-old infants
Journal name European Journal of Clinical Nutrition   Check publisher's open access policy
ISSN 0954-3007
Publication date 1995-05
Sub-type Article (original research)
Volume 49
Issue 5
Start page 323
End page 328
Total pages 6
Place of publication London, England
Publisher Nature Publishing
Language eng
Subject 1111 Nutrition and Dietetics
1114 Paediatrics and Reproductive Medicine
Formatted abstract
Objective:
Sleeping metabolic rate (SMR) is influenced by body size and body composition. In order to be able to compare SMR between individuals and groups, the best way to remove the effect of body size and body composition was sought.

Design:

A cohort of 50 infants was studied at 12 weeks. SMR was measured by indirect calorimetry, and body size and body composition by anthropometry and a stable isotope technique. Regression analysis was used to calculate the best way to remove the effect of body size and body composition on SMR.

Results:
Regression analysis showed that SMR was adjusted for body weight and fat-free mass by raising body weight to the power 0.41, and by raising fat-free mass to the power 0.44. When SMR was at its minimum level, the optimum powers were 0.41 for body weight and 0.45 for fat-free mass.

Conclusions:
SMR can be adjusted for body weight, or fat-free mass thereby taking both body size and body composition into account, by expressing SMR in terms of weight or fat free mass raised to powers close to 0.50.
Keyword Body Composition
Energy Expenditure
Energy Metabolism
Formula-fed Infants
Energy-Expenditure
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, 09:37:46 EST