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Titolo:
THERMAL EFFECT OF FOOD IN HUMANS - METHODS AND RESULTS FROM USE OF A RESPIRATORY CHAMBER
Autore:
TATARANNI PA; LARSON DE; SNITKER S; RAVUSSIN E;
Indirizzi:
NIDDK,CLIN DIABET & NUTR SECT,4212 N 16TH ST,ROOM 541 PHOENIX AZ 85016
Titolo Testata:
The American journal of clinical nutrition
fascicolo: 5, volume: 61, anno: 1995,
pagine: 1013 - 1019
SICI:
0002-9165(1995)61:5<1013:TEOFIH>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
DIET-INDUCED THERMOGENESIS; MEAL-INDUCED THERMOGENESIS; GLUCOSE-INDUCED THERMOGENESIS; SYMPATHETIC NERVOUS-SYSTEM; ENERGY-EXPENDITURE; OBESE SUBJECTS; INDIRECT CALORIMETRY; METABOLIC-RATE; BODY-WEIGHT; INSULIN;
Keywords:
ENERGY EXPENDITURE; THERMOGENESIS; OBESITY; PREDICTORS OF WEIGHT GAIN;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
42
Recensione:
Indirizzi per estratti:
Citazione:
P.A. Tataranni et al., "THERMAL EFFECT OF FOOD IN HUMANS - METHODS AND RESULTS FROM USE OF A RESPIRATORY CHAMBER", The American journal of clinical nutrition, 61(5), 1995, pp. 1013-1019

Abstract

During the past two decades, many investigators have measured the thermic effect of food (TEF) in humans and have speculated on its role inthe development of obesity. In this study we compared different ways of computing TEF from daily energy expenditure measurements in a respiratory chamber, evaluated the determinants of TEF, and more importantly assessed for the first time the relation between TEF and change in body weight. In 471 subjects, TEF was 1697 +/- 857 kJ/d (($) over bar x+/- SD), ie, 18 +/- 9% of energy intake. In 114 subjects studied morethan once, intraindividual TEF variability was very high (CV = 48%). TEF correlated positively with the level of spontaneous physical activity (SPA) and negatively with fasting plasma glucose and insulin concentrations. TEF correlated inversely with age (males only) and body weight, percent body fat, and waist-to-hip ratio (females only). The level of SPA and fasting plasma glucose concentration were the only significant determinants of TEF, explaining 15% of its variance. In 137 subjects in whom body weight was measured greater than or equal to 6 mo after TEF measurement (mean follow-up duration of 2.9 +/- 1.7 y), a low TEF was not predictive of body weight gain. We conclude that, despite the low reproducibility of TEF from use of a respiratory chamber, datain a large number of subjects suggest that TEF is increased by higherSPAs and that insulin resistance is associated with a low TEF. More important, longitudinal data indicate that the variability in TEF is not associated with changes in body weight.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 09/07/20 alle ore 16:56:29