URINARY VOLUME, WATER AND RECURRENCES IN IDIOPATHIC CALCIUM NEPHROLITHIASIS: A 5-YEAR RANDOMIZED PROSPECTIVE STUDY.

PURPOSE: We define the role of urine volume as a stone risk factor in idiopathic calcium stone disease and test the actual preventive effectiveness of a high water intake. MATERIALS AND METHODS: We studied 101 controls and 199 patients from the first idiopathic calcium stone episode. After a baseline study period the stone formers were [...]

By |2013-01-31T18:33:41+00:00enero 31st, 2013|Hydration and health, Scientific papers|0 Comments

EFFECT OF BLOOD VOLUME ON SWEATING RATE AND BODY FLUIDS IN EXERCISING HUMANS.

Five relatively fit men performed cycle ergometer exercise (65-70% VO2max) for up to 30 min at 30 degrees C, 40% rh. The data from control (normo-volemic), hypovolemic [8.7% reduction in blood volume (BV) induced by diuretics], and hypervolemic [7.9% expansion of BV induced by infusion if isotonic serum albumin] tests revealed significant effects of BV [...]

By |2013-01-31T18:33:41+00:00enero 31st, 2013|Exercise and sport, Scientific papers|0 Comments

EFFECT OF HYPEROSMOLALITY ON CONTROL OF BLOOD FLOW AND SWEATING.

To study the effect of hyperosmolality on thermoregulatory responses, five men [average maximal O2 consumption (VO2 max) = 48 ml X kg-1 X min-1] cycled at 65-75% VO2max for up to 30 min in a 30 degrees C, 40% relative humidity environment under three conditions. First, control tests (C) were performed where preexercise plasma volume [...]

MONITORING HYDRATION STATUS IN ELDERLY VETERANS

Dehydration is a common water and electrolyte disorder in long-term care residents. Practical methods to detect and monitor dehydration are needed. This study determined whether urine color measured by a urine color chart reflects hydration status. The study employed a repeated measures design with two observations during a 10-hour period. Urine color was compared to [...]

By |2013-01-31T18:33:41+00:00enero 31st, 2013|Assessment methodologies, Scientific papers|0 Comments