Effects of posture on gastric emptying and satiety ratings after a nutritive liquid and solid meal.
Am J Physiol Regul Integr Comp Physiol
; 279(2): R684-94, 2000 Aug.
Article
en En
| MEDLINE
| ID: mdl-10938260
ABSTRACT
To study the effects of posture and meal structure on gastric emptying and satiety, nine women ingested tomato soup and then immediately or 20 min later an egg sandwich, when seated and when supine. The lag time was not different, but the half-emptying time of the sandwich was 32% longer (P < 0.01) and the emptying rate after the lag phase was 39% slower (P < 0.01) when the subjects were supine than when they were seated. The half-emptying time of the soup was 50% longer (P < 0.01) when the subjects were supine and ingested the soup immediately before the sandwich than in the other three conditions. Postprandial hunger ratings recovered more slowly (P < 0.01) when the subjects ingested the soup 20 min before the sandwich than when they ingested the soup immediately before the sandwich. These results suggest that posture did not affect the intragastric distribution of the sandwich but affected propulsion of the meal into the intestine and that postprandial satiety was enhanced by the cumulative effect over time of a 20-min "head start" in stimulation of intestinal receptors by emptying of the soup.
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Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Postura
/
Respuesta de Saciedad
/
Ingestión de Alimentos
/
Vaciamiento Gástrico
Límite:
Adult
/
Female
/
Humans
Idioma:
En
Revista:
Am J Physiol Regul Integr Comp Physiol
Asunto de la revista:
FISIOLOGIA
Año:
2000
Tipo del documento:
Article
País de afiliación:
Estados Unidos