. "5. Water Requirements During Excercise in the Heat." Nutritional Needs in Hot Environments: Applications for Military Personnel in Field Operations. Washington, DC: The National Academies Press, 1993.
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Nutritional Needs in Hot Environments: Applications for Military Personnel in Field Operations
Nielsen, B. 1969 Thermoregulation in rest and exercise. Acta Physiol. Scand. Suppl. 323:1–74.
Roberts, M.F., C.B. Wenger, J.A.J. Stolwijk, and E.R. Nadel 1977 Skin blood flow and sweating changes following exercise and heat acclimation. J. Appl. Physiol. 43:133–137.
Robinson, S., and S.D. Getking 1947 Thermal balance of men working in severe heat. Am. J. Physiol. 149:476–488.
Robinson, S., H.S. Helding, F.C. Consolazio, S.M. Horvath, and E.S. Turrell 1986 Acclimatization of older men to work in heat. J. Appl. Physiol. 20:583–586. Shapiro, Y., K.B.
Pandolf, and R.F. Goldman 1982 Predicting sweat loss response to exercise, environment and clothing. Eur. J. Appl. Physiol. 48:83–96.
Taylor, N.A.S. 1986 Eccrine sweat glands. Adaptations to physical training and heat acclimation. Sports Med. 3:387–397.
Weinman, K.P., Z. Slabochova, E.M. Bernauer, T. Morimoto, and F. Sargent II 1967 Reactions of men and women to repeated exposure to humid heat. J. Appl. Physiol. 22:533–538.
Wenger, C.B. 1988 Human heat acclimatization. Pp. 153–197 in Human Performance Physiology and Environmental Medicine at Terrestrial Extremes. Indianapolis, Ind.: Benchmark Press.
Wyndham, C.H., J.F. Morrison, and C.G. Williams 1965 Heat reactions of male and female Caucasians. J. Appl. Physiol. 20:357–364.
PARTICIPANT: It is a little unclear. I thought you said that men sweat more but if you expressed it as amount of sweat, provided surface area was the same, but then it looked like in one of the slides it was different.
DR. GISOLFI: No, they are not the same. Even if you express it as percent body surface area, women still sweat less. But the important point is, women are able to maintain the same core body temperature as men when they are at the same relative work load.
PARTICIPANT: And was that formula applicable for both men and women?
DR. GISOLFI: No, the formula was based on men.
PARTICIPANT: Is there any effect from body mass?
DR. GISOLFI: Body fat is going to impede heat loss, certainly, and if you evaluate the impact of body weight to surface area ratio, the heavier person has a greater metabolic heat load and has a smaller surface area to dissipate that heat. These individuals will have more trouble dissipating heat when exposed to a warm environment exercising at the same intensity as an individual who is not carrying that much weight.