Effects of Beer, Non-Alcoholic Beer and Water Consumption before Exercise on Fluid and Electrolyte Homeostasis in Athletes
Fecha
2016Autor
Johannsen, Neil [Estados Unidos. University of Louisiana Lafayette]
Astudillo, Sebastián [Chile. Centro de Salud Familiar El Peral]
Jorquera, Carlos [Chile. Universidad Mayor]
Ubicación geográfica
Notas
HERRAMIENTAS
Resumen
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 IC+ 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.
URI
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4924186/pdf/nutrients-08-00345.pdfhttps://dx.doi.org/10.3390/nu8060345
http://repositorio.umayor.cl/xmlui/handle/sibum/2675
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