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Research Article

Effects of Acute Caffeine Consumption on Sodium-Aided Hyperhydration

¹Department of Health and Exercise Science, Appalachian State University, Boone, NC, USA

²Department of Kinesiology, University of Texas – Permian Basin, Odessa, TX, USA

*Corresponding Author:

Morris DM
Faculty of Medicine of the
University of Porto
Praça de Gomes Teixeira
4099-002 Porto, Portugal
Tel: +351 22 040 8000
E-mail: inesmendrosinha@gmail.com

Received Date:December 09, 2016; Accepted Date: January 06, 2017; Published Date: January 20, 2017

Citation: Morris DM, Beloni RK, Wofford H, Roslanova E (2017) Effects of Acute Caffeine Consumption on Sodium-Aided Hyperhydration. Sports Nutr Ther 2:119. doi: 10.4172/2473-6449.1000119

Copyright: © 2017 Morris DM, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

When utilized separately, pre-exercise hyperhydration or consumption of caffeine have both been shown to be ergogenic. Acute caffeine consumption has also been shown to promote diuresis in some situations, but this effect has not been studied when caffeine is used in conjunction with sodium-aided hyperhydration. We measured urine production during hyperhydration strategies performed with and without caffeine. Fifteen euhydrated subjects performed five strategies by consuming 20 mL water/kg bm alone (NT), or with a placebo (PL), 5 mg/kg bm caffeine (Caf), 110 mg/kg bm NaCl (Na), or 5 mg caffeine +110 mg NaCl/kg bm (CafNa). Total urine excretion was measured for 2 h following treatment consumption and expressed as a percentage of the total water consumed. Total twohour urine excretion values were 103 16% (NT), 102 15% (PL), 116 18% (Caf), 68 14% (Na) and 85 14% (CafNa) of water consumed. No significant difference in urine excretion was detected between NT and PL. Caf resulted in significantly more, and Na in significantly less, urine excretion compared to all other strategies. CafNa resulted in significantly less urine excretion than NT, PL, and Caf, but significantly more excretion than Na. The results suggest that hyperhydration can be achieved when an acute caffeine dose is consumed in conjunction with sodium-aided hyperhydration; however, the level of hyperhydration is significantly less than attained when an equal dose of water and sodium are consumed without caffeine

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