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Fluid Restriction Decreases Solid Food Consumption Post-Exercise

Dehydration in rodents induces anorexia. In humans however, the role of dehydration in energy intake is controversial. This study investigated the effect of extreme fluid restriction on acute energy intake during and after exercise-induced dehydration. Eight physically active participants performed...

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Autores principales: Pérez-Luco, Cristian, Díaz-Castro, Francisco, Jorquera, Carlos, Troncoso, Rodrigo, Zbinden-Foncea, Hermann, Johannsen, Neil M, Castro-Sepulveda, Mauricio
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6627041/
https://www.ncbi.nlm.nih.gov/pubmed/31141968
http://dx.doi.org/10.3390/nu11061209
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author Pérez-Luco, Cristian
Díaz-Castro, Francisco
Jorquera, Carlos
Troncoso, Rodrigo
Zbinden-Foncea, Hermann
Johannsen, Neil M
Castro-Sepulveda, Mauricio
author_facet Pérez-Luco, Cristian
Díaz-Castro, Francisco
Jorquera, Carlos
Troncoso, Rodrigo
Zbinden-Foncea, Hermann
Johannsen, Neil M
Castro-Sepulveda, Mauricio
author_sort Pérez-Luco, Cristian
collection PubMed
description Dehydration in rodents induces anorexia. In humans however, the role of dehydration in energy intake is controversial. This study investigated the effect of extreme fluid restriction on acute energy intake during and after exercise-induced dehydration. Eight physically active participants performed two exercise sessions to induce dehydration. After the exercise, the men were allowed to either rehydrate for 2 h or were maintained in a hypohydrated state, in a randomized manner. After 2 h, they were given cereal bars ad libitum for 1 h. Blood and saliva samples of the participants were collected before the exercise session, after the exercise session, after rehydration, and after the meal. Post-exercise energy intake differed between hypohydrated (1430 ± 210 kcal) and rehydrated (2190 ± 780 kcal) trials (p = 0.01). For the concentrations of ghrelin and leptin, there were no significant effects of time (p = 0.94, p = 0.21), between trials (p = 0.09, p = 0.99), or due to a trial–time interaction (p = 0.64, p = 0.68), respectively. The concentrations of peptide YY (PYY) were not different between trials (p = 0.94) but there was a significant effect of time (p = 0.0001) and a trial–time interaction (p = 0.01), with higher levels in the rehydration trial after eating in response to a higher energy intake. For saliva production, there was a significant effect of time (p = 0.02) and a trial–time interaction (p = 0.04), but no between-trial effect (p = 0.08). In conclusion, extreme fluid restriction decreased acute food intake after exercise, which may be explained by a lower flow of saliva.
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spelling pubmed-66270412019-07-19 Fluid Restriction Decreases Solid Food Consumption Post-Exercise Pérez-Luco, Cristian Díaz-Castro, Francisco Jorquera, Carlos Troncoso, Rodrigo Zbinden-Foncea, Hermann Johannsen, Neil M Castro-Sepulveda, Mauricio Nutrients Article Dehydration in rodents induces anorexia. In humans however, the role of dehydration in energy intake is controversial. This study investigated the effect of extreme fluid restriction on acute energy intake during and after exercise-induced dehydration. Eight physically active participants performed two exercise sessions to induce dehydration. After the exercise, the men were allowed to either rehydrate for 2 h or were maintained in a hypohydrated state, in a randomized manner. After 2 h, they were given cereal bars ad libitum for 1 h. Blood and saliva samples of the participants were collected before the exercise session, after the exercise session, after rehydration, and after the meal. Post-exercise energy intake differed between hypohydrated (1430 ± 210 kcal) and rehydrated (2190 ± 780 kcal) trials (p = 0.01). For the concentrations of ghrelin and leptin, there were no significant effects of time (p = 0.94, p = 0.21), between trials (p = 0.09, p = 0.99), or due to a trial–time interaction (p = 0.64, p = 0.68), respectively. The concentrations of peptide YY (PYY) were not different between trials (p = 0.94) but there was a significant effect of time (p = 0.0001) and a trial–time interaction (p = 0.01), with higher levels in the rehydration trial after eating in response to a higher energy intake. For saliva production, there was a significant effect of time (p = 0.02) and a trial–time interaction (p = 0.04), but no between-trial effect (p = 0.08). In conclusion, extreme fluid restriction decreased acute food intake after exercise, which may be explained by a lower flow of saliva. MDPI 2019-05-28 /pmc/articles/PMC6627041/ /pubmed/31141968 http://dx.doi.org/10.3390/nu11061209 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Pérez-Luco, Cristian
Díaz-Castro, Francisco
Jorquera, Carlos
Troncoso, Rodrigo
Zbinden-Foncea, Hermann
Johannsen, Neil M
Castro-Sepulveda, Mauricio
Fluid Restriction Decreases Solid Food Consumption Post-Exercise
title Fluid Restriction Decreases Solid Food Consumption Post-Exercise
title_full Fluid Restriction Decreases Solid Food Consumption Post-Exercise
title_fullStr Fluid Restriction Decreases Solid Food Consumption Post-Exercise
title_full_unstemmed Fluid Restriction Decreases Solid Food Consumption Post-Exercise
title_short Fluid Restriction Decreases Solid Food Consumption Post-Exercise
title_sort fluid restriction decreases solid food consumption post-exercise
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6627041/
https://www.ncbi.nlm.nih.gov/pubmed/31141968
http://dx.doi.org/10.3390/nu11061209
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