Seasonal changes in 24-h and basal energy expenditures in rural Gambian men as measured in a respiration chamber.

Détails

ID Serval
serval:BIB_AA22AA9E413C
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Seasonal changes in 24-h and basal energy expenditures in rural Gambian men as measured in a respiration chamber.
Périodique
American Journal of Clinical Nutrition
Auteur⸱e⸱s
Minghelli G., Schutz Y., Whitehead R., Jéquier E.
ISSN
0002-9165 (Print)
ISSN-L
0002-9165
Statut éditorial
Publié
Date de publication
1991
Volume
53
Numéro
1
Pages
14-20
Langue
anglais
Résumé
Adaptation of 24-h energy expenditure (24-h EE) to seasonal variations in food availability was studied, by using a respiration chamber, in 18 rural Gambian men on three occasions: period 1--at the end of the rainy season, which is characterized by low food availability; period 2--during the nutritionally favorable dry season; and period 3--at the onset of the following rainy season. From periods 1 to 2 body weight increased by 2.8 +/- 0.4 kg, and a rise in 24-h EE was observed (from 8556 +/- 212 kJ/d to 9166 +/- 224 kJ/d), which was correlated to weight change (r = 0.73, P less than 0.001). During period 3, 24-h EE averaged 8740 +/- 194 kJ/d. Diet-induced thermogenesis increased significantly from periods 1 to 2 (5.9 +/- 0.5% to 8.2 +/- 0.8%) and subsequently decreased to 3.6 +/- 0.6% during period 3. In rural Gambian men, metabolic adaptations in response to seasonal changes in food availability are reflected by a decrease in body weight, mainly manifested by a loss of fat-free mass accompanied by a decreased 24-h EE and a lowered diet-induced thermogenesis.
Mots-clé
Adult, Analysis of Variance, Basal Metabolism, Body Weight, Circadian Rhythm, Developing Countries, Efficiency/physiology, Energy Metabolism, Exercise, Food Supply, Gambia, Humans, Male, Prospective Studies, Respiratory Function Tests, Rural Population, Seasons, Sleep
Pubmed
Web of science
Création de la notice
21/01/2008 13:09
Dernière modification de la notice
20/08/2019 15:14
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