enero 2013 – Página 10 – Cátedra Internacional de Estudios Avanzados en Hidratación

Effect of exercise-induced dehydration on endurance performance: evaluating the impact of exercise protocols on outcomes using a meta-analytic procedure.

Objective: It is purported that exercise-induced dehydration (EID), especially if â‰¥ 2% bodyweight, impairs endurance performance (EP). Field research shows that athletes can achieve outstanding EP while dehydrated > 2% bodyweight. Using the meta-analytic procedure, this study compared the findings of laboratory-based studies that examined the impact of EID upon EP using either ecologically valid [...]

By CIEAH - ICASH|2017-05-21T03:18:32+00:00enero 31st, 2013|Documentos científicos, Exercise and sport|Comentarios desactivados

Hydration and performance during Ramadan.

In the absence of any food or fluid intake during the hours of daylight during the month of Ramadan, a progressive loss of body water will occur over the course of each day, though these losses can be completely replaced each night. Large body water deficits will impair both physical and cognitive performance. The point [...]

By CIEAH - ICASH|2017-05-21T03:18:11+00:00enero 31st, 2013|Behaviour: knowledge, understanding and attitudes of the population, Documentos científicos|Comentarios desactivados

Hypernatremia in critically ill patients.

Hypernatremia is common in intensive care units. It has detrimental effects on various physiologic functions and was shown to be an independent risk factor for increased mortality in critically ill patients. Mechanisms of hypernatremia include sodium gain and/or loss of free water and can be discriminated by clinical assessment and urine electrolyte analysis. Because many [...]

By CIEAH - ICASH|2017-05-21T03:18:32+00:00enero 31st, 2013|Documentos científicos, Electrolytes, hyponatraemia|Comentarios desactivados

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 CIEAH - ICASH|2017-05-21T03:18:12+00:00enero 31st, 2013|Children, Documentos científicos|Comentarios desactivados

Urine osmolality. A definitive test of renal function.

The ability of the kidneys to concentrate urine is regarded as a sensitive indicator of renal function.1Â Since concentration tests are easily done, they enjoy wide clinical use. This renal activity is usually studied by measuring urine specific gravity, i.e. the ratio of the weight of urine to an equal volume of water. The specific gravity [...]

By CIEAH - ICASH|2017-05-21T03:18:32+00:00enero 31st, 2013|Documentos científicos, Hydration status: effects on physiology and metabolism|Comentarios desactivados

Hydration Status of Arabic Adolescents and Young Men: Measurement, Evaluation, and a School-based Initiative to Improve Drinking Behaviour.

BACKGROUND. Despite the importance of hydration, limited research has been undertaken in Arabic populations. METHODS: Study 1: 88 adult military cadets and 32 school-based adolescents provided five sequential daily mid-morning urine samples. Hydration thresholds were produced using percentiles of estimated urine osmolality (Uosm) and urine color (Ucol). Study 2: 120 military cadets and 52 adolescents [...]

By CIEAH - ICASH|2017-05-21T03:18:12+00:00enero 31st, 2013|Behaviour: knowledge, understanding and attitudes of the population, Documentos científicos|Comentarios desactivados

Hydration and cognitive performance.

A clinical link exists between severe dehydration andÂ cognitiveÂ 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 andÂ cognitiveÂ function related to vision, but more recent studies have not all confirmed these data. Some studies argue that water loss is not responsible for [...]

By CIEAH - ICASH|2017-05-21T03:18:30+00:00enero 31st, 2013|Documentos científicos, Hydration status: effects on physiology and metabolism|Comentarios desactivados

Influence of Beverage Temperature on Palatability and Fluid Ingestion During Endurance Exercise: a systematic review.

BACKGROUND. Beverage palatability is known to influence fluid consumption during exercise and may positively influence hydration status and help to prevent fatigue, heat illness and decreased performance. PURPOSE: The aims of this review were to evaluate the effect of beverage temperature on fluid intake during exercise and investigate the influence of beverage temperature on palatability. [...]

By CIEAH - ICASH|2017-05-21T03:18:12+00:00enero 31st, 2013|Behaviour: knowledge, understanding and attitudes of the population, Documentos científicos|Comentarios desactivados

Saliva indices track hypohydration during 48h of fluid restriction or combined fluid andenergy restriction.

OBJECTIVE: To investigate whether unstimulated wholeÂ salivaÂ flow rate (UFR) and osmolality (Sosm)Â trackÂ changes in hydration status during 48h of restrictedÂ fluidÂ intake (RF) orÂ combinedÂ fluidÂ andÂ energyÂ restrictionÂ (RF+RE). Following the 48h periods, UFR and Sosm were assessed after acute exercise dehydration and rehydration. DESIGN: Thirteen healthy males completed three trials in a randomised order: control (CON) where participants received their estimatedÂ energyÂ (12,154+/-230kJ/d: mean+/-S.E.M) andÂ fluidÂ (3912+/-140ml/d) [...]

By CIEAH - ICASH|2017-05-21T03:18:31+00:00enero 31st, 2013|Assessment methodologies, Documentos científicos|Comentarios desactivados

Physical signs of dehydration in the elderly.

Objective Dehydration is a common condition and frequent cause of hospitalization in older people, despite the caregiver's high attention in attempt to avoid its occurrence. In this study, various physical signs were examined as clinical signs of dehydration in elderly. Methods A prospective observational study was conducted in an acute care teaching hospital. Consecutive elderly [...]

By CIEAH - ICASH|2017-05-21T03:18:30+00:00enero 31st, 2013|Age and the elderly, Documentos científicos|Comentarios desactivados