Influence de l''hydratation sur la sécrétion d''hormone de croissance induite par l''exerciceHydration influence on exercise-induced growth hormone secretion |
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Authors: | C. Peyreigne, D. Bouix, J. F. Brun, J. Mercier,C. Pr faut |
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Affiliation: | Service central de physiologie clinique, centre d'exploration et de réadaptation des anomalies métaboliques et musculaires (CERAMM), CHU Lapeyronie, 371, avenue du Doyen Giraud, 34295 Montpellier, France |
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Abstract: | Aim – Study was then to investigate hydration influence on exercise-induced GHh secretion.Methods and results – Seven healthy men underwent a submaximal rectangular cycling exercise for 30 minutes to 150 watts during two sessions. A first one without any water intake and a second one with ingestion of spring water corresponding to the volume of water lost during the first session. Plasma volume decrease was significantly higher during the first session (p < 0.05). Total GH secretion was significantly lower during this session (p < 0.05).Conclusion – A moderate dehydration decreases exercise-induced GH response. Thus, hypovolemia may exert a negative feed back on GH secretion, during exercise. |
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Keywords: | Mots-clé: exercice hormone de croissance hydratation volémieMots-clé: exercise growth hormone hydration volemia |
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