Thirst and hydration status in everyday life.

Water is an essential nutrient for all persons; thus, maintaining a chronic state of optimal hydration is recognized to provide health benefits. Fluid balance is maintained via thirst, a feedback-controlled variable, regulated acutely by central and peripheral mechanisms. However, voluntary drinking is also a behavior influenced by numerous social and psychological cues. Therefore, whether "thirst-guided" [...]

By |2017-05-21T03:16:36+00:00enero 31st, 2013|Documentos científicos, Hydration status: effects on physiology and metabolism|Comentarios desactivados en Thirst and hydration status in everyday life.

Methods for assessing the effects of dehydration on cognitive function.

Studying the effects of dehydration on cognitive function presents a variety of unique and difficult challenges to investigators. These challenges, which are addressed in this article, can be divided into three general categories: 1) choosing an appropriate method of generating a consistent level of dehydration; 2) determining and effectively employing appropriate and sensitive measures of [...]

By |2017-05-21T03:16:37+00:00enero 31st, 2013|Assessment methodologies, Documentos científicos|Comentarios desactivados en Methods for assessing the effects of dehydration on cognitive function.

Hydration for recreational sport and physical activity.

This review presents recommendations for fluid needs and hydration assessment for recreational activity. Fluid needs are based on sweat losses, dependent on intensity and duration of the activity, and will vary among individuals. Prolonged aerobic activity is adversely influenced by dehydration, and heat exposure will magnify this effect. Fluid needs predicted for running 5-42 km at [...]

By |2017-05-21T03:16:37+00:00enero 31st, 2013|Documentos científicos, Exercise and sport|Comentarios desactivados en Hydration for recreational sport and physical activity.

Hydration, morbidity, and mortality in vulnerable populations.

Both acute and chronic fluid deficits have been shown to be associated with a number of adverse health outcomes. At the extreme, deprivation of water for more than a few days inevitably leads to death, but even modest fluid deficits may precipitate adverse events, especially in young children, in the frail elderly and in those [...]

By |2017-05-21T03:16:37+00:00enero 31st, 2013|Age and the elderly, Documentos científicos|Comentarios desactivados en Hydration, morbidity, and mortality in vulnerable populations.

Dehydration and endurance performance in competitive athletes.

The field of research examining the link between dehydration and endurance performance is at the dawn of a new era. This article reviews the latest findings describing the relationship between exercise-induced dehydration and endurance performance and provides the knowledge necessary for competitive, endurance-trained athletes to develop a winning hydration strategy. Acute, pre-exercise body weight loss [...]

By |2017-05-21T03:16:37+00:00enero 31st, 2013|Assessment methodologies, Documentos científicos|Comentarios desactivados en Dehydration and endurance performance in competitive athletes.

Investigating the associations between hydration and exercise performance: methodology and limitations.

Loss of body water, if sufficiently severe, impairs most physiological functions, but the body water content fluctuates over the course of a normal day with no implications for physical or mental performance. The point at which an effect of dehydration becomes apparent has been the subject of much debate, in part, at least, because of [...]

By |2017-05-21T03:16:37+00:00enero 31st, 2013|Documentos científicos, Exercise and sport|Comentarios desactivados en Investigating the associations between hydration and exercise performance: methodology and limitations.

A randomised controlled trial to investigate the effects of dehydration on tooth colour.

OBJECTIVES: To assess effects of dehydration on tooth colour. To investigate any change in tooth colour resulting from dehydration and the time required for any change to return to baseline. METHODS: 20 subjects with intact maxillary central incisors were recruited. In each case one incisor was randomly assigned as test tooth with the other acting [...]

By |2017-05-21T03:16:53+00:00enero 31st, 2013|Assessment methodologies, Documentos científicos|Comentarios desactivados en A randomised controlled trial to investigate the effects of dehydration on tooth colour.

The effect of prescribed fluid consumption on physiology and work behavior of wildfire fighters.

The purpose of this study was to examine 1) wildfire fighters' ability to consume the prescribed fluid volume (1200 mL h(-1)), 2) the effect of fluid intake on plasma sodium and hydration, and 3) the effect of fluid intake on firefighters' heart rate, core temperature and activity during emergency suppression shifts. METHODS: Thirty-four firefighters were divided into [...]

By |2017-05-21T03:16:53+00:00enero 31st, 2013|Documentos científicos, Hydration status: effects on physiology and metabolism|Comentarios desactivados en The effect of prescribed fluid consumption on physiology and work behavior of wildfire fighters.

Hydration-dehydration, heat, humidity, and “cool, clear, water”.

Personal recollections of dehydration meltdowns during the Kona Ironman Triathlon, reflections on their cause, and the author's experiential recommendations regarding hydration, prevention of dehydration, and "beat the heat and humidity" measures. http://www.ncbi.nlm.nih.gov/pubmed/23147099n

By |2017-05-21T03:16:53+00:00enero 31st, 2013|Documentos científicos, Exercise and sport|Comentarios desactivados en Hydration-dehydration, heat, humidity, and “cool, clear, water”.