Saliva parameters as potential indices of hydratio status during acute dehydration.

PURPOSE: Firstly, to identify whether saliva flow rate, osmolality, and total protein are potential markers of hydration, we compared changes in these parameters with changes in plasma osmolality during progressive dehydration. Secondly, we compared the sensitivity of saliva parameters to track hydration changes with the sensitivity of urine osmolality. Thirdly, to test the hypothesis thatdehydration, rather than neuroendocrine regulation, is responsible for the decrease in saliva flow rate during prolonged [...]

By |2017-05-21T03:18:31+00:00enero 31st, 2013|Assessment methodologies, Documentos científicos|Comentarios desactivados en Saliva parameters as potential indices of hydratio status during acute dehydration.

Application of multifrequency bioelectrical impedance analysis method for the detection of dehydration status in professional divers.

BACKGROUND AND OBJECTIVE. The level of dehydration has been known to be a predisposing factor for the development of decompression sickness in divers. The aim of this study was to determine the level of dehydration in divers who dove with heliox and to determine whether the source of this dehydration was intracellular and/or extracellular by [...]

By |2017-05-21T03:18:31+00:00enero 31st, 2013|Assessment methodologies, Documentos científicos|Comentarios desactivados en Application of multifrequency bioelectrical impedance analysis method for the detection of dehydration status in professional divers.

Too little water or too much: hyponatremia due to excess fluid intake

Hyponatremia associated with diarrhea is usually caused by dehydration, with salt loss accompanying the excessive loss of water. On the other hand, hyponatremia in this setting can occasionally be caused by excess ingestion or administration of hypotonic fluids (1, 2). In this report, we describe the differential diagnosis of hyponatremia in an infant.

By |2017-05-21T03:18:12+00:00enero 31st, 2013|Children, Documentos científicos|Comentarios desactivados en Too little water or too much: hyponatremia due to excess fluid intake

The Impact of Ramadan Observance upon Athletic Performance

Ramadan observance requires a total abstention from food and drink from sunrise to sunset for a period of one month. Such intermittent fasting has only minor effects upon the overall nutrition and physiological responses of the general sedentary population. Larger meals are consumed at night and in the early morning. Body mass usually remains unchanged, [...]

By |2017-05-21T03:18:31+00:00enero 31st, 2013|Documentos científicos, Exercise and sport|Comentarios desactivados en The Impact of Ramadan Observance upon Athletic Performance

Body Mass Change and Ultraendurance Performance: A Decrease in Body Mass Is Associated With an Increased Running Speed in Male 100-km Ultramarathoners.

Body mass change and ultraendurance performance: a decrease in body mass is associated with an increased running speed in male 100-km ultramarathoners. J Strength Cond Res 26(6): 1505-1516, 2012-We investigated, in 50 recreational male ultrarunners, the changes in body mass, selected hematological and urine parameters, and fluid intake during a 100-km ultramarathon. The athletes lost [...]

By |2017-05-21T03:18:33+00:00enero 31st, 2013|Documentos científicos, Exercise and sport|Comentarios desactivados en Body Mass Change and Ultraendurance Performance: A Decrease in Body Mass Is Associated With an Increased Running Speed in Male 100-km Ultramarathoners.

Hypertonic Saline and Acute Wheezing in Preschool Children.

BACKGROUND: Most acute wheezing episodes in preschool children are associated with rhinovirus. Rhinovirus decreases extracellular adenosine triphosphate levels, leading to airway surface liquid dehydration. This, along with submucosal edema, mucus plaques, and inflammation, causes failure of mucus clearance. These preschool children do not respond well to available treatments, even oral steroids. This calls for pro-mucus [...]

By |2017-05-21T03:18:32+00:00enero 31st, 2013|Children, Documentos científicos|Comentarios desactivados en Hypertonic Saline and Acute Wheezing in Preschool Children.

Hydration, sweat and thermoregulatory responses to professional football training in the heat.

This study examined the relationship between intensity of training and changes in hydration status, core temperature, sweat rate and composition and fluid balance in professional football players training in the heat. Thirteen professional football players completed three training sessions; "higher-intensity" (140 min; HI(140)), "lower-intensity" (120 min; LI(120)) and "game-simulation" (100 min; GS(100)). Movement demands were [...]

By |2017-05-21T03:18:32+00:00enero 31st, 2013|Documentos científicos, Exercise and sport|Comentarios desactivados en Hydration, sweat and thermoregulatory responses to professional football training in the heat.

Nutritional problems, overhydration and the association with quality of life in elderly dialysis patients.

PURPOSE: The aim of this pilot study was to describe the hydration and nutritional status of a cohort of elderly dialysis patients and to explore the association between these parameters and the quality of life (QoL). METHODS: All patients over 75 years of age being in chronic dialysis by January 2008 at 3 dialysis units (n = 34) [...]

By |2017-05-21T03:18:52+00:00enero 31st, 2013|Age and the elderly, Documentos científicos|Comentarios desactivados en Nutritional problems, overhydration and the association with quality of life in elderly dialysis patients.

The effect of a meal and water loading on heart rate variability in children with functional dyspepsia

BACKGROUND: Alteration in autonomic function has been implicated as a possible pathophysiologic mechanism in functional dyspepsia (FD) in adults.nnMETHODS: This was a two-part study. For the first part of the study, nine children with FD and 28 controls underwent heart rate variability (HRV) analysis for 30 min baseline and for 60 min following a test [...]

By |2017-05-21T03:18:52+00:00enero 31st, 2013|Children, Documentos científicos|Comentarios desactivados en The effect of a meal and water loading on heart rate variability in children with functional dyspepsia

Hydration and cognitive performance.

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 [...]

By |2017-05-21T03:18:52+00:00enero 31st, 2013|Documentos científicos, Hydration status of population groups|Comentarios desactivados en Hydration and cognitive performance.