[Performance of entero-insular axis in an athletic population: diet and exercise influence].

Abstract

INTRODUCTION:

The relationship between physical exercise and appetite regulation can lead to improved competitive performance of athletes. Mediators of the entero-insular axis generate neurohumoral signals that influence on the appetite regulation and energy homeostasis.

AIM:

Determine the influence of diet and prolonged exercise on intestinal peptide, ghrelin, resistin, leptin, and incretins (GLP-1 and GIP) in an athlete population.

METHODS:

It is a prospective intervention study, conducted from October 2012 to March 2013. 32 healthy semiprofessional rugby players, aged 13-39 years were included. Anthropometric measurements and blood samples were taken at time 0 and after six months of study. Athletes were randomized to a protein diet (PD) or Mediterranean diet (MD) and plasma levels of intestinal peptide, ghrelin, resistin, leptin, and incretins were calculated.

RESULTS:

In the PD group, GLP-1 and GIP plasmatic levels showed a significant decrease (p <0.03; p <0.01 respectively). GLP-1 and ghrelin plasmatic concentration demonstrated a significant decrease (p <0.03 respectively) in those who experienced gain of muscle mass (MM). Finally, the athletes related to the PD who showed increased total weight and muscle mass presented significantly decreased GLP-1 concentration (p <0.03 and p<0.002, respectively).

CONCLUSION:

GLP-1 plasmatic concentration was decreased, with the PD suggesting to be more beneficial for the athletes in order to avoid hypoglycemia. Furthermore, muscle mass and total weight gain, linked to the PD, could enhance athletic performance in certain sport modalities.

• Authors: Carmen Rodriguez, Maribel Quezada-Feijoo, Carmen Toro, Gonzalo Barón-Esquivias, Eduardo Segura, Alipio Mangas, Rocio Toro
• Journal: Nutricion hospitalaria (Nutr Hosp) Vol. 31 Issue 5 Pg. 2187-94 (May 01 2015) ISSN: 1699-5198 [Electronic] Spain
• Vernacular Title: COMPORTAMIENTO DEL EJE ENTERO-INSULAR EN UNA POBLACION DEPORTISTA; INFLUENCIA DE LA DIETA Y EL EJERCICIO.
• PMID: 25929392 (Publication Type: Journal Article, Randomized Controlled Trial)
• Copyright: Copyright AULA MEDICA EDICIONES 2014. Published by AULA MEDICA. All rights reserved.

Chemical References

• Dietary Proteins
• Glucagon-Like Peptide 1

Topics

• Adolescent
• Adult
• Appetite
• Athletic Performance
• Body Composition
• Child
• Diet
• Diet, Mediterranean
• Dietary Proteins (administration & dosage)
• Exercise
• Football
• Glucagon-Like Peptide 1 (blood)
• Humans
• Male
• Prospective Studies
• Young Adult