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Titolo:
SPONTANEOUS OVERFEEDING WITH A CAFETERIA DIET IN MEN - EFFECTS ON 24-HOUR ENERGY-EXPENDITURE AND SUBSTRATE OXIDATION
Autore:
LARSON DE; RISING R; FERRARO RT; RAVUSSIN E;
Indirizzi:
NIDDKD,CLIN DIABET & NUTR SECT,4212 N 16TH ST,RM 541 PHOENIX AZ 85016 NIDDKD,CLIN DIABET & NUTR SECT PHOENIX AZ 85016
Titolo Testata:
International journal of obesity
fascicolo: 5, volume: 19, anno: 1995,
pagine: 331 - 337
SICI:
0307-0565(1995)19:5<331:SOWACD>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
FOOD-INTAKE; FAT OXIDATION; PIMA-INDIANS; WEIGHT-GAIN; CARBOHYDRATE; OBESITY; HUMANS; BALANCE; LIPOGENESIS; EXERCISE;
Keywords:
OVERFEEDING; CAFETERIA DIET; ENERGY EXPENDITURE; SUBSTRATE OXIDATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
40
Recensione:
Indirizzi per estratti:
Citazione:
D.E. Larson et al., "SPONTANEOUS OVERFEEDING WITH A CAFETERIA DIET IN MEN - EFFECTS ON 24-HOUR ENERGY-EXPENDITURE AND SUBSTRATE OXIDATION", International journal of obesity, 19(5), 1995, pp. 331-337

Abstract

OBJECTIVE: To investigate the relationship between obesity and ad librtum food intake (quantity and composition) and to assess the impact of ad libitum food intake on energy expenditure and macronutrient oxidation. DESIGN: Mate volunteers were first fed a weight maintaining dietfor at least 4 days before selecting their food for the next 5 days from two computerized vending machines offering a variety of familiar, palatable foods, 24-h energy expenditure (24EE) and substrate oxidation were measured in a respiratory chamber on the last day of each weight maintenance and ad libitum intake periods. SETTING: Ten day admission on a metabolic research ward. SUBJECTS: Thirty-four non-diabetic Pima Indian males covering a wide range of body weight and body composition (30 +/- 8 y, 102.1 +/- 30.2 kg, 34 +/- 9% body fat, mean +/- s.d.). RESULTS: Weight maintenance requirements averaged 2913 +/- 342 kcal/d, Energy intake during the ad libitum period increased to 4550 +/- 921kcal/d (12 +/- 1% protein, 40 +/- 4% fat, 48 +/- 4% carbohydrate) i.e., a spontaneous overeating by 54 +/- 32% above weight maintenance requirement, resulting in a 0.9 +/- 1.0 kg body weight gain. Neither the composition of the selected diet nor the degree of overeating was associated with physical characteristics, such as body weight and body composition, When compared with baseline, spontaneous overeating on day 5was associated with a 396 +/- 233 kcal/d increase in 24EE, a 607 +/- 503 kcal/d increase in carbohydrate oxidation, a 214 +/- 392 kcal/d decrease in lipid oxidation (P < 0.01), and no change in protein oxidation. Increased carbohydrate oxidation correlated with the excess carbohydrate intake (r = 0.69, p = 0.0001) accounting for 68 +/- 13% (mean +/- s.e.e) of the excess, whereas excess fat intake was not oxidized. CONCLUSION: In response to spontaneous overfeeding on a mixed 'cafeteria diet', excess carbohydrate intake is oxidized, suggesting a physiological control of carbohydrate stores, whereas excess fat intake is channeled toward fat stores, None of the observed changes were related toindices of obesity.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 10/07/20 alle ore 14:28:28