ISSN:
1432-2013
Keywords:
Body Temperature Regulation
;
Dehydration
;
Exertion
;
Heat
;
Water-Electrolyte Balance
;
Regulierung der Körpertemperatur
;
Dehydration
;
Belastung
;
Wärme
;
Wasser-elektrolytischer Ausgleich
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Summary Forty-nine unacclimatised Bantu mine workers divided into two groups were subjected to a standard heat exercise stress. One group had sweat losses replaced by drinking water and the other had no water at all. Salt and water deficits were measured by an indirect method based on the volume of urine and salt excreted over the four-hour period of the test. These excretions were correlated with the fourth-hour temperature response and showed good correlations. The difference in heat tolerance was found to be due to a difference in salt and water deficit. Osmolal clearance and free water clearance were additional measurements which showed agreement in the findings of the relative salt and water deficits. Blood chemistry and sweat physiology and chemistry could not discriminate between the heat intolerant and heat tolerant subjects. Certain features of blood and urine chemistry of water replacements and water deprivation were shown.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00586661
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