Journal of Applied Physiology AJP: Advances in Physiology Education
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J Appl Physiol 81: 1169-1173, 1996;
8750-7587/96 $5.00
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Journal of Applied Physiology, Vol 81, Issue 3 1169-1173, Copyright © 1996 by American Physiological Society

ARTICLES

Heart rate recording method validated by whole body indirect calorimetry in 10-yr-old children

A. Bitar, M. Vermorel, N. Fellmann, M. Bedu, A. Chamoux and J. Coudert
Energy and Lipid Metabolism Research Unit, Institut National de la Recherche Agronomique, St Genes Champanelle, France.

The aim of the study was to validate the heart rate (HR) recording method against whole body indirect calorimetry in prepubertal children. Nineteen 10.5-yr-old healthy children (10 boys, 9 girls) participated in this study. HR and energy expenditure (EE) were recorded through laboratory tests. Individual relationships between HR and EE were computed (equation established in laboratory). Several models were tested and validated from 24-h measurements of EE and HR by whole body indirect calorimetry. The best fit was obtained with individual polynomial relationships. Mean differences between predicted (equation established in laboratory) 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.


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