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Nutrients 2016, 8(6), 345; doi:10.3390/nu8060345

Effects of Beer, Non-Alcoholic Beer and Water Consumption before Exercise on Fluid and Electrolyte Homeostasis in Athletes

1
Exercise Science Laboratory, Faculty of Medicine, Universidad Finis Terrae, Av. Pedro de Valdivia 1509, Providencia, Santiago 7500000, Chile
2
Department of Preventive Medicine, Pennington Biomedical Research Center, Baton Rouge, LA 70808, USA
3
School of Kinesiology, Louisiana State University, Baton Rouge, LA 70803, USA
4
Family Health Center, El Peral s/n Sector La Pirca, Panquehue 2210000, Chile
5
Nutrition and Exercise Laboratory, Faculty of Medicine, Universidad Mayor, Santiago 8320000, Chile
6
Family Health Center, Los Lagos 5170000, Chile
7
Department of Physical Activity Sciences, Universidad de Los Lagos, Osorno 5290000, Chile
*
Author to whom correspondence should be addressed.
Received: 11 April 2016 / Revised: 25 May 2016 / Accepted: 31 May 2016 / Published: 7 June 2016
(This article belongs to the Special Issue Nutrition, Health and Athletic Performance)
View Full-Text   |   Download PDF [218 KB, uploaded 7 June 2016]

Abstract

Fluid and electrolyte status have a significant impact on physical performance and health. Pre-exercise recommendations cite the possibility of consuming beverages with high amounts of sodium. In this sense, non-alcoholic beer can be considered an effective pre-exercise hydration beverage. This double-blind, randomized study aimed to compare the effect of beer, non-alcoholic beer and water consumption before exercise on fluid and electrolyte homeostasis. Seven male soccer players performed 45 min of treadmill running at 65% of the maximal heart rate, 45 min after ingesting 0.7 L of water (W), beer (AB) or non-alcoholic beer (NAB). Body mass, plasma Na+ and K+ concentrations and urine specific gravity (USG) were assessed before fluid consumption and after exercise. After exercise, body mass decreased (p < 0.05) in W (−1.1%), AB (−1.0%) and NAB (−1.0%). In the last minutes of exercise, plasma Na+ was reduced (p < 0.05) in W (−3.9%) and AB (−3.7%), plasma K+ was increased (p < 0.05) in AB (8.5%), and USG was reduced in W (−0.9%) and NAB (−1.0%). Collectively, these results suggest that non-alcoholic beer before exercise could help maintain electrolyte homeostasis during exercise. Alcoholic beer intake reduced plasma Na+ and increased plasma K+ during exercise, which may negatively affect health and physical performance, and finally, the consumption of water before exercise could induce decreases of Na+ in plasma during exercise. View Full-Text
Keywords: hydration before-exercise; fluid balance during-exercise; blood electrolytes hydration before-exercise; fluid balance during-exercise; blood electrolytes
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Castro-Sepulveda, M.; Johannsen, N.; Astudillo, S.; Jorquera, C.; Álvarez, C.; Zbinden-Foncea, H.; Ramírez-Campillo, R. Effects of Beer, Non-Alcoholic Beer and Water Consumption before Exercise on Fluid and Electrolyte Homeostasis in Athletes. Nutrients 2016, 8, 345.

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