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Titolo:
ENERGY-METABOLISM IN WEIGHT-STABLE POSTOBESE INDIVIDUALS
Autore:
LARSON DE; FERRARO RT; ROBERTSON DS; RAVUSSIN E;
Indirizzi:
UNIV ALABAMA,DEPT NUTR SCI,ENERGY METAB RES UNIT,1675 UNIV BLVD BIRMINGHAM AL 35294 NIDDKD,CLIN DIABET & NUTR SECT PHOENIX AZ 85016
Titolo Testata:
The American journal of clinical nutrition
fascicolo: 4, volume: 62, anno: 1995,
pagine: 735 - 739
SICI:
0002-9165(1995)62:4<735:EIWPI>2.0.ZU;2-H
Fonte:
ISI
Lingua:
ENG
Soggetto:
OBESE WOMEN; FAT OXIDATION; PIMA-INDIANS; BODY-WEIGHT; DIETARY-FAT; POST-OBESE; EXPENDITURE; GAIN; EXERCISE; RATIO;
Keywords:
RESPIRATORY CHAMBER; ENERGY EXPENDITURE; FAT OXIDATION; BODY COMPOSITION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
34
Recensione:
Indirizzi per estratti:
Citazione:
D.E. Larson et al., "ENERGY-METABOLISM IN WEIGHT-STABLE POSTOBESE INDIVIDUALS", The American journal of clinical nutrition, 62(4), 1995, pp. 735-739

Abstract

A low metabolic rate for a given body size and body composition and alow ratio of fat to carbohydrate oxidation predict body weight gain. Such metabolic traits could also explain, in part, the propensity of previously obese (postobese) individuals to regain weight after dieting. We studied 11 postobese volunteers (4 males, 7 females; aged 43 +/- 13 y, weighing 80.6 +/- 10.2 kg, with 30 +/- 7% body fat; (x) over bar+/- SD) who lost 57 +/- 38 kg (23-139 kg) over 14 +/- 12 mo (6-48 mo)on various diet programs and had maintained this weight loss for greater than or equal to 2 mo (2-72 mo; 21 +/- 27 mo). After greater than or equal to 2 d of a weight-maintenance diet on a metabolic ward, 24-henergy expenditure and ratio of fat to carbohydrate oxidation were measured in a respiratory chamber. Compared with a central group (n = 110) with similar physical characteristics (aged 43 +/- 14 y, weighing 79.5 +/- 11.4 kg, with 30 +/- 12% body fat), postobese individuals had similar energy expenditures adjusted for fat-free mass, fat mass, age,and sex, but significantly higher respiratory quotients over 24 h (0.883 +/- 0.026 compared with 0.863 +/- 0.024, P < 0.01) and during sleep, 10 h after the last meal (0.894 +/- 0.063 compared with 0.845 +/- 0.055). These results suggest that postobese individuals have low ratesof fat oxidation that may explain their propensity to regain weight. Therefore, obesity treatment and/or prevention should be aimed at reducing dietary fat and increasing fat oxidation (possibly by exercise) to prevent increases in body fat stores.

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Documento generato il 03/07/20 alle ore 21:37:32