PURPOSE OF REVIEW: To review the advances in the assessment, treatment, and evaluation of care for pediatric dehydration. RECENT FINDINGS: Recent studies have added new information across the spectrum of care for dehydration. Advances in the assessment of dehydration allow more accurate clinical evaluation, but do not help predict the treatment outcomes. Antiemetics as an [...]
Although expert groups have developed guidelines for fluid intake during sports, there is debate about their real-world application. We reviewed the literature on self-selected hydration strategies during sporting competitions to determine what is apparently practical and valued by athletes. We found few studies of drinking practices involving elite or highly competitive athletes, even in popular [...]
The Effects of High Intensity Intermittent Exercise Compared to Continuous Exercise on Voluntary Water Ingestion.
Water intake occurs following a period of high intensity intermittent exercise (HIIE) due to sensations of thirst yet this does not always appear to be caused by body water losses. Thus, the aim was to assess voluntary water intake following HIIE. Ten healthy males (22±2y, 75.6±6.9kg, VO2peak 57.3±11.4ml.kg-1.min-1) (mean±SD) completed two trials (7-14d apart). Subjects [...]
PURPOSE: This work combines and reanalyzes 5 yr of exercise-associated hyponatremia (EAH) research at 161-km ultramarathons in northern California with primary purposes to define the relationship between postrace blood sodium concentration ([Na]) and change in body weight; to examine the interactions among EAH incidence, ambient temperature, and hydration state; and to explore the effect of [...]
The effect of reducing fluid fasting times on thirst and urine osmolality in women undergoing elective caesarean delivery.
ABSTRACT NOT FOUND http://www.ncbi.nlm.nih.gov/pubmed/23481415
This study investigated the impact of mild-moderate dehydration on alcohol-induced deteriorations in cognitive functions. Sixteen healthy males participated in a single-blind, placebo-controlled cross-over design study involving 4 experimental trials (separated by ≥7 d). In each trial, participants were dehydrated by 2.5% body mass through exercise. After 1 h recovery in a thermo-neutral environment (22 ± 2 °C, 60-70% relative humidity) [...]
A clinical link exists between severe dehydration and cognitive performance. Using rapid and severe water loss induced either by intense exercise and/or heat stress, initial studies suggested there were alterations in short-term memory and cognitive function related to vision, but more recent studies have not all confirmed these data. Some studies argue that water loss [...]
BACKGROUND AND PURPOSE: Abnormal physiological parametersÂ afterÂ acute strokeÂ may induce early neurological deterioration. Studies of the effect of dehydration onÂ strokeÂ outcomeÂ are limited. We examined the association ofÂ raisedplasma osmolality onÂ strokeÂ outcomeÂ at 3 months and the change of plasma osmolality with hydration during the first weekafterÂ stroke. METHODS: Acute strokeÂ patients had their plasma osmolality measured at admission and at days 1, 3, [...]
In order to test the hypothesis thatÂ urineÂ colourÂ can be used as anÂ indexÂ ofÂ hydrationÂ inÂ criticallyÂ illÂ patients, we selected 40 intensive care and high-dependencyÂ patientsÂ and correlatedÂ urineÂ colourÂ (scored on an eight-point scale) with various indices ofÂ hydration:Â urine:plasma sodium, osmolality and urea ratios,Â urineÂ output and central venous pressure. In addition, we compared theÂ colour-chart score with scores made by intensive care nurses (without the benefit of aÂ colourÂ chart) in [...]
It is difficult to describe hydration status and hydration extremes because fluid intakes and excretion patterns of free-living individuals are poorly documented and regulation of human water balance is complex and dynamic. This investigation provided reference values for euhydration (i.e., body mass, daily fluid intake, serum osmolality; M +/- SD); it also compared urinary indices [...]