Manipulations to the Alcohol and Sodium Content of Beer for Post Exercise Rehydration

Desbrow, Ben, Cecchin, Danielle, Jones, Ashleigh, Grant, Gary, Irwin, Chris and Leveritt, Michael (2015) Manipulations to the Alcohol and Sodium Content of Beer for Post Exercise Rehydration. International Journal of Sport Nutrition And Exercise Metabolism, 25 3: 262-270. doi:10.1123/ijsnem.2014-0064


Author Desbrow, Ben
Cecchin, Danielle
Jones, Ashleigh
Grant, Gary
Irwin, Chris
Leveritt, Michael
Title Manipulations to the Alcohol and Sodium Content of Beer for Post Exercise Rehydration
Journal name International Journal of Sport Nutrition And Exercise Metabolism   Check publisher's open access policy
ISSN 1526-484X
1543-2742
Publication date 2015
Sub-type Article (original research)
DOI 10.1123/ijsnem.2014-0064
Volume 25
Issue 3
Start page 262
End page 270
Total pages 9
Place of publication Champaign, IL United States
Publisher Human Kinetics
Collection year 2016
Language eng
Formatted abstract
The addition of 25 mmol×L-1 sodium to low alcohol (2.3% ABV) beer has been shown to enhance post exercise fluid retention compared to full strength (4.8% ABV) beer with and without electrolyte modification. This investigation explored the effect of further manipulations to the alcohol and sodium content of beer on fluid restoration following exercise. Twelve male volunteers lost 2.03±0.19% body mass (mean±SD) using cycling-based exercise. Participants were then randomly allocated a different beer to consume on four separate occasions. Drinks included low alcohol beer with 25 mmol×L-1 of added sodium [LightBeer+25], low alcohol beer with 50 mmol×L-1 of added sodium [LightBeer+50], mid-strength beer (3.5% ABV) [Mid] or mid-strength beer with 25 mmol×L-1 of added sodium [Mid+25]. Total drink volumes in each trial were equivalent to 150% of body mass loss during exercise, consumed over a 1h period. Body mass, urine samples and regulatory hormones were obtained before and 4h after beverage consumption. Total urine output was significantly lower in the LightBeer+50 trial (1450±183 mL) compared to the LightBeer+25 (1796±284 mL), Mid+25 (1786±373 mL) and Mid (1986±304 mL) trials (all p<0.05). This resulted in significantly higher net body mass following the LightBeer+50 trial (-0.97±0.17kg) compared to all other beverages (LightBeer+25 (-1.30±0.24 kg), Mid+25 (-1.38±0.33 kg) and Mid (-1.58±0.29 kg), all p<0.05). No significant changes to aldosterone or vasopressin were associated with different drink treatments. The electrolyte concentration of low alcohol beer appears to have more significant impact on post exercise fluid retention than small changes in the alcohol content of beer.
Keyword Rehydration
Fluid Balance
Exercise
Electrolytes, Diuresis
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2016 Collection
School of Human Movement and Nutrition Sciences Publications
 
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Created: Wed, 28 Jan 2015, 14:01:10 EST by Michael Leveritt on behalf of School of Human Movement and Nutrition Sciences