Heart-rate recording method validated by whole-body indirect
calorimetry in 10 year-old children.
Bitar, Abdelali, Michel Vermorel, Nicole Fellmann, Mario Bedu, Alain
Chamoux, and Jean Coudert.
Energy and Lipid Metabolism Research Unit, INRA, Theix, 63122 St
Gen[grave]es Champanelle; and Physiology and Sports Biology
Laboratory, Medical Faculty, 63000, Clermont-Ferrand, France
APStracts 3:0194A, 1996.
The aim of the study was to validate the heart-rate recording method
against whole-body indirect calorimetry in prepubertal children.
Nineteen 10.5 year-old healthy children (10 boys, 9 girls)
participated in this study. Heart-rate (HR) and energy expenditure
(EE) were recorded through laboratory tests. Individual relationships
between HR and EE were computed (Elab). Several models were tested
and validated from 24 hours measurements of EE and HR by whole-body
indirect calorimetry. The best fit was obtained with individual
polynomial relationships. Mean differences between predicted (Elab)
and measured total daily EE averaged +7.6 +/- 20.1%. The causes of
the differences and the means of improving the accuracy of the
prediction equation are discussed.
Received 31 July 1995; accepted in final form 2 April 1996.
APS Manuscript Number A872-5.
Article publication pending Journal of Applied Physiology.
ISSN 1080-4757 Copyright 1996 The American Physiological Society.
Published in APStracts on 16 April 96