PHYSIOLOGICAL MEASUREMENTS OF METABOLIC FUNCTIONS IN MAN.
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Mountaineering involves high altitude and cold exposure which are each associated with significant levels of dehydration (via altitude-cold diuresis, high energy expenditures, and poor access to water). The purpose of this study was to identify and validate urine and blood indices of dehydration as compared to changes in total body water (which served as the [...]
To evaluate the influence of hydration status on the estimation of body composition using dual-energy X-ray absorptiometry (DXA), six normal volunteers and seven patients on maintenance haemodialysis were investigated using two different DXA machines (Lunar DPX, Hologic QDR 1000/W). Normal volunteers were studied (Hologic QDR 1000/W) before and 1 h after ingestion of breakfast, lunch [...]
This population-based case-control study reports on the relationship between fluid intake and the incidence of bladder cancer among 262 bladder cancer cases from Western Washington and 405 controls identified through random-digit dialing Cases were identified from the Surveillance. Epidemiology, and End Results (SEER) registry and were diagnosed between January 1987 and June 1990. All eligible [...]
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Given that some wrestlers arrive for minimum weight (MW) testing in a dehydrated condition, it is important to understand the effects of dehydration
As part of a large-scale field feeding system test we were able to collect and study hundreds of aliquots of overnight urine samples obtained immediately prior to a fasting blood sample on days 1, 20, and 44 of the field test. The large number of experimental samples (greater than 650) and concomitant collection of blood [...]
OBJECTIVE: To identify whether saliva flow rate, total protein concentration and osmolality are sensitive non-invasive markers of whole body hydration status, we compared changes in these parameters with changes in body mass during progressive acute dehydration. DESIGN: Twelve euhydrated males reported to the laboratory following an overnight fast and cycled on a stationary ergometer at [...]
No abstract available.
The physical properties and chemical composition of urine are highly variable and are determined in large measure by the quantity and the type of food consumed. The specific gravity is the ratio of the density to that of water, and it is dependent on the number and weight of solute particles and on the temperature [...]