Journal of Applied Physiology Fuel your research with LabChart
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

J Appl Physiol 71: 144-149, 1991;
8750-7587/91 $5.00
This Article
Right arrow Full Text (PDF)
Right arrow Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when eLetters are posted
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Murray, R.
Right arrow Articles by Halaby, G. A.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Murray, R.
Right arrow Articles by Halaby, G. A.

Journal of Applied Physiology, Vol 71, Issue 1 144-149, Copyright © 1991 by American Physiological Society

ARTICLES

Physiological responses to glycerol ingestion during exercise

R. Murray, D. E. Eddy, G. L. Paul, J. G. Seifert and G. A. Halaby
Exercise Physiology Laboratory, John Stuart Research Laboratories, Quaker Oats Company, Barrington, Illinois 60010.

To study selected cardiovascular, thermoregulatory, and hormonal responses to the consumption of glycerol solutions during exercise, nine subjects cycled for 90 min at 50% peak O2 uptake in a 30 degree C, 45% relative humidity environment. Beverages tested included a 10% glycerol solution (G), a 6% carbohydrate-electrolyte beverage (CE), the 6% carbohydrate-electrolyte beverage plus 4% glycerol (CEG), and a water placebo (WP) ingested at regular intervals during the first 60 min of exercise. The beverages were administered in counterbalanced order with subjects serving as their own controls. Ingestion of the glycerol solutions resulted in an increase in plasma osmolality and attenuation of the decrease in plasma volume associated with the WP treatment (P less than 0.05). Plasma renin activity was highest with WP (P less than 0.05), and G was associated with increased antidiuretic hormone levels (P less than 0.05). Ratings of perceived thirst were lowest for CEG and G, and the frequency of gastrointestinal distress was greatest for G (P less than 0.05). However, no differences among beverage treatments were observed for heart rate, esophageal temperature, sweat rate, ratings of perceived exertion, or changes in cortisol and aldosterone levels. These data indicate that there are no substantial metabolic, hormonal, cardiovascular, or thermoregulatory advantages to the consumption of solutions containing 4 or 10% glycerol during exercise.


This article has been cited by other articles:


Home page
 J. Appl. Physiol.Home page
S. A. Kavouras, L. E. Armstrong, C. M. Maresh, D. J. Casa, J. A. Herrera-Soto, T. P. Scheett, J. Stoppani, G. W. Mack, and W. J. Kraemer
Rehydration with glycerol: endocrine, cardiovascular, and thermoregulatory responses during exercise in the heat
J Appl Physiol, February 1, 2006; 100(2): 442 - 450.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Physiol.Home page
Y. Burelle, D. Massicotte, M. Lussier, C. Lavoie, C. Hillaire-Marcel, and F. Peronnet
Oxidation of [13C]glycerol ingested along with glucose during prolonged exercise
J Appl Physiol, May 1, 2001; 90(5): 1685 - 1690.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Physiol.Home page
W. A. Latzka, M. N. Sawka, S. J. Montain, G. S. Skrinar, R. A. Fielding, R. P. Matott, and K. B. Pandolf
Hyperhydration: thermoregulatory effects during compensable exercise-heat stress
J Appl Physiol, September 1, 1997; 83(3): 860 - 866.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Visit Other APS Journals Online