About CIEAH - ICASH

This author has not yet filled in any details.
So far CIEAH - ICASH has created 1257 blog entries.

Abnormalities of water metabolism in the elderly.

Hypernatremia is a frequent problem at the extremes of age, but particularly so in elderly individuals. Changes in the physiological responses to water deprivation with increasing age may be of particular interest in understanding the pathogenesis of hypernatremia in the elderly. When comparing healthy elderly men to younger controls, there are differences in the response [...]

By |2013-01-31T18:33:24+00:00enero 31st, 2013|Age and the elderly, Scientific papers|0 Comments

The clinical physiology of water metabolism. Part I: The physiologic regulation of arginine vasopressin secretion and thirst.

Water balance is tightly regulated within a tolerance of less than 1 percent by a physiologic control system located in the hypothalamus. Body water homeostasis is achieved by balancing renal and nonrenal water losses with appropriate water intake. The major stimulus to thirst is increased osmolality of body fluids as perceived by osmoreceptors in the [...]

EFFECTS OF VOLUNTARY FLUID INTAKE DEPRIVATION ON MENTAL AND PSYCHOMOTOR PERFORMANCE

AIM: To assess if there is deterioration in mental and psychomotor performance during 24-hour voluntary fluid intake deprivation. METHODS: A battery of computer generated psychological tests (Complex Reactionmeter Drenovac-series) was applied to 10 subjects to test light signal position discrimination, short-term memory, simple visual orientation, simple arithmetics, and complex motor coordination. We measured total test [...]

By |2013-01-31T18:33:24+00:00enero 31st, 2013|Exercise and sport, Scientific papers|0 Comments

HYPERTHERMIA AND DEHYDRATION-RELATED DEATHS ASSOCIATED WITH INTENTIONAL RAPID WEIGHT LOSS IN THREE COLLEGIATE WRESTLERSA—NORTH CAROLINA, WISCONSIN, AND MICHIGAN, NOVEMBERA–DECEMBER 1997

Centers for Disease Control and Prevention (CDC). During November 7-December 9, 1997, three previously healthy collegiate wrestlers in different states died while each was engaged in a program of rapid weight loss to qualify for competition. In the hours preceding the official weigh-in, all three wrestlers engaged in a similar rapid weight-loss regimen that promoted [...]

By |2013-01-31T18:33:24+00:00enero 31st, 2013|Exercise and sport, Scientific papers|0 Comments

Hydration status measurement by radio frequency absorptiometry in young athletes–a new method and preliminary results.

A new method for non-invasive measurement of the human state of hydration is presented. This method is based on frequency-dependent absorptiometry of radio-waves passing through tissues. A device utilizing this method was constructed and applied to 12 young (24 +/- 1) male volunteers, who were dehydrated for 1-2.5% of their weight by performance of a [...]

By |2013-01-31T18:33:24+00:00enero 31st, 2013|Assessment methodologies, Scientific papers|0 Comments

Water channels.

The movement of water across cell membranes has been an active area of research for more than 100 years and is of fundamental importance in the normal water metabolism of all terrestrial animals. The objective of this review is to integrate recent data obtained from the isolation and molecular cloning of water channel proteins, with [...]

Fluid losses and hydration status of industrial workers under thermal stress working extended shifts.

AIMS: To assess whether workers under significant thermal stress necessarily dehydrated during their exposure and whether "involuntary dehydration" was inevitable, as supported by ISO 9866 and other authorities. Other objectives were to quantify sweat rates against recommended occupational limits, to develop a dehydration protocol to assist with managing heat exposures, and to understand the role [...]

By |2013-01-31T18:33:24+00:00enero 31st, 2013|Environmental conditions, Scientific papers|0 Comments