Hyperhydration: Tolerance and cardiovascular effects during uncompensable exercise-heat stress

Journal of Applied Physiology

Volumn 84, Issue 6, 1998, Pages 1858-1864

  Latzka, William A ^a   Sawka, Michael N ^b   Montain, Scott J ^b   Skrinar, Gary S ^b   Fielding, Roger A ^b   Matott, Ralph P ^b   Pandolf, Kent B ^b  

^a U S ARMY RESEARCH INSTITUTE OF ENVIRONMENTAL MEDICINE   (United States)

^b NONE

Author keywords

Cardiac output; Core temperature; Fluid replacement; Glycerol; Heat stress; Heat tolerance; Hydration; Physiological tolerance; Sweating

Indexed keywords

ADULT; ARTICLE; CONTROLLED STUDY; CORE TEMPERATURE; EXERCISE; EXHAUSTION; FLUID BALANCE; HEART OUTPUT; HEAT STRESS; HEAT TOLERANCE; HUMAN; HUMAN EXPERIMENT; NORMAL HUMAN; PRIORITY JOURNAL; SKIN TEMPERATURE; SWEATING; TOTAL BODY WATER;

EID: 0031831441     PISSN: 87507587     EISSN: None     Source Type: Journal    
DOI: 10.1152/jappl.1998.84.6.1858     Document Type: Article

References (36)

1. Belding, H. S., and E. Kamon. Evaporative coefficients for prediction of safe limits in prolonged exposures to work under hot conditions. Federation Proc. 32: 1598-1601, 1973.
2. Brengelmann, G. L., J. M. Johnson, L. Hermansen, and L. B. Rowell. Altered control of skin blood flow during exercise at high internal temperatures. J. Appl. Physiol. 43: 790-794, 1977.
3. Brück, K., and H. Olschewski. Body temperature related factors diminishing the drive to exercise. Can. J. Physiol. Pharmacol. 65: 1274-1280, 1987.
4. Febbraio, M. A., R. J. Snow, M. Hargreaves, C. G. Stathis, I. K. Martin, and M. F. Carey. Muscle metabolism during exercise and heat stress in trained men: effect of acclimation. J. Appl. Physiol. 76: 589-597, 1994.
5. Fink, W. J., D. L. Costill, and P. J. Van Handel. Leg muscle metabolism during exercise in the heat and cold. Eur. J. Appl. Physiol. 34: 183-190, 1975.
6. Freund, B. J., S. J. Montain, A. J. Young, M. N. Sawka, J. P. DeLuca, K. B. Pandolf, and C. R. Valari. Glycerol hyperhydration: hormonal, renal, and vascular fluid responses. J. Appl. Physiol. 79: 2069-2077, 1995.
7. Friedl, K. E., J. P. DeLuca, L. P. Marchitelli, and J. A. Vogel. Reliability of body-fat estimations from a four-compartment model by using density, total body water, and bone mineral measurements. Am. J. Clin. Nutr. 55: 764-770, 1992.
8. Gonzalez, R. R., L. G. Berglund, and A. P. Gagge. Indices of thermoregulatory strain for moderate exercise in the heat. J. APPl. Physiol. 44: 889-899, 1978.
9. Hargreaves, M., P. Dillo, D. Angus, and M. Febbraio. Effect of fluid ingestion on muscle metabolism during prolonged exercise. J. Appl. Physiol. 80: 363-366, 1996.
10. Heigenhauser, G. J. F., and N. L. Jones. Comparison of two rebreathing methods for the determination of mixed venous partial pressure of carbon dioxide during exercise. Clin. Sci. (Colch.) 56: 433-437, 1979.
11. Johnson, J. M., and D. W. Proppe. Cardiovascular adjustments to heat stress. In: Handbook of Physiology. Environmental Physiology. Bethesda, MD: Am. Physiol. Soc., 1996, sect. 4, vol. I, pt. II, chapt. 11, p. 215-243.
12. 2 in exercise. J. Appl. Physiol. 47: 954-960, 1979.
13. Kamon, E., and K. P. Pandolf. Maximal aerobic power during laddermill climbing, uphill running, and cycling. J. Appl. Physiol. 32: 467-473, 1972.
14. Kraning, K. K., and R. R. Gonzalez. Physiological consequences of intermittent exercise during compensable and uncompensable heat stress. J. Appl. Physiol. 71: 2138-2145, 1991.
15. Latzka, W. A., 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. 83: 860-866, 1997.
16. Lind, A. R. A physiological criterion for setting thermal environmental limits for everyday work. J. Appl. Physiol. 18: 51-56, 1963.
17. Lind, A. R. Prediction of safe limits for prolonged occupational exposure to heat. Federation Proc. 32: 1602-1606, 1973.
18. Montain, S. J., and E. F. Coyle. Influence of graded dehydration on hyperthermia and cardiovascular drift during exercise. J. Appl. Physiol. 73: 1340-1350, 1992.
19. Montain, S. J., M. N. Sawka, B. S. Cadarette, M. D. Quigley, and J. M. McKay. Physiological tolerance to uncompensable heat stress: effects of exercise intensity, protective clothing, and climate. J. Appl. Physiol. 77: 216-222, 1994.
20. Nadel, E. R., E. Cafarelli, M. F. Roberts, and C. B. Wenger. Circulatory regulation during exercise in different ambient temperatures. J. Appl. Physiol. 46: 430-437, 1979.
21. Nielsen, B., J. R. S. Hales, S. Strange, N. Juel Christensen, J. Warberg, and B. Saltin. Human circulatory and thermoregulatory adaptations with acclimation and exercise in a hot, dry environment. J. Physiol. (Lond.) 460: 467-485, 1993.
22. Pitts, G. C., R. E. Johnson, and F. C. Consolazio. Work in the heat as affected by intake of water, salt, and glucose. Am. J. Physiol. 142: 253-259, 1944.
23. Ramanathan, N. L. A new weighting system for mean surface temperature of the human body. J. Appl. Physiol. 19: 531-533, 1964.
24. Riedesel, M. L., D. Y. Allen, G. T. Peake, and K. Al-Qattan. Hyperhydration with glycerol solutions. J. Appl. Physiol. 63: 2262-2268, 1987.
25. Robinson, S., and S. D. Gerking. Thermal balance of men working in severe heat. Am. J. Physiol. 149: 476-488, 1947.
26. Robinson, S., E. S. Turrell, and S. D. Gerking. Physiological equivalent conditions of air temperature and humidity. Am. J. Physiol. 143: 21-32, 1945.
27. Rowell, L. B. Human cardiovascular adjustments to exercise and thermal stress. Physiol. Rev. 54: 75-159, 1974.
28. Rowell, L. B. Cardiovascular adjustments to thermal stress. In: Handbook of Physiology. The Cardiovascular System. Peripheral Circulation and Organ Blood Flow. Bethesda, MD: Am. Physiol. Soc., 1983, sect. 2, vol. III, pt. 2, chapt. 27, p. 967-1023.
29. Rowell, L. B. Cardiovascular aspects of human thermoregulation. Circ. Res. 52: 367-379, 1983.
30. Rowell, L. B., H. J. Marx, R. A. Bruce, R. D. Conn, and F. Kusumi. Reductions in cardiac output, central blood volume, and stroke volume with thermal stress in normal men during exercise. J. Clin. Invest. 45: 1801-1816, 1966.
31. Saltin, B. Circulatory response to submaximal and maximal exercise after thermal dehydration. J. Appl. Physiol. 19: 1125-1132, 1964.
32. Sawka, M. N., C. B. Wenger, and K. B. Pandolf. Thermoregulatory responses to acute exercise-heat stress and heat acclimation. In: Handbook of Physiology. Environmental Physiology. Bethesda, MD: Am. Physiol. Soc., 1996, sect. 4, vol. I, pt. II, chapt. 9, p. 157-185.
33. Sawka, M. N., A. J. Young, W. A. Latzka, P. D. Neufer, M. D. Quigley, and K. B. Pandolf. Human tolerance to heat strain during exercise: influence of hydration. J. Appl. Physiol. 73: 368-375, 1992.
34. Senay, L. C. Temperature regulation and hypohydration: a singular view. J. Appl. Physiol. 47: 1-7, 1979.
35. Strydom, N. B., C. H. Wyndham, C. H. VanGraan, L. D. Holdsworth, and J. F. Morrison. The influence of water restriction on the performance of men during a prolonged march. S. Afr. Med. J. 31: 539-544, 1966.
36. Young, A. J., M. N. Sawka, L. Levine, P. W. Burgoon, W. A. Latzka, R. R. Gonzalez, and K. B. Pandolf. Metabolic and thermal adaptations from endurance training in hot or cold water. J. Appl. Physiol. 78: 793-801, 1995.