What do athletes drink during competitive sporting activities?

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 [...]

By | 2017-05-21T03:14:19+00:00 julio 15th, 2013|Body water content; body composition, Documentos científicos, Exercise and sport|Comentarios desactivados en What do athletes drink during competitive sporting activities?

Total body water and its compartments are not affected by ingesting a moderate dose of caffeine in healthy young adult males.

Acute and chronic caffeine intakes have no impact on hydration status (R.J. Maughan and J. Griffin, J. Hum. Nutr. Diet. 16(6): 411-420, 2003), although no research has been conducted to analyze the effects using dilution techniques on total-body water (TBW) and its compartments. Therefore, the aim of this study was to investigate the effects of [...]

By | 2017-05-21T03:14:23+00:00 junio 20th, 2013|Body water content; body composition, Caffeine and other diuretics, Documentos científicos, Water balance|Comentarios desactivados en Total body water and its compartments are not affected by ingesting a moderate dose of caffeine in healthy young adult males.

Effects of a competitive wrestling season on body composition, endocrine markers, and anaerobic exercise performance in NCAA collegiate wrestlers.

Few data exist examining the body composition, endocrine, and anaerobic exercise performance changes over a competitive wrestling season. Eighteen NCAA wrestlers were tested for endocrine markers, body composition, hydration, grip strength, and power on four occasions: prior to pre-season training (T1); after pre-season training 3 days prior to the first seasonal meet (T2); mid-season one [...]

By | 2017-05-21T03:14:23+00:00 junio 20th, 2013|Body water content; body composition, Documentos científicos, Exercise and sport|Comentarios desactivados en Effects of a competitive wrestling season on body composition, endocrine markers, and anaerobic exercise performance in NCAA collegiate wrestlers.

Hydration biomarkers in free-living adults with different levels of habitual fluid consumption.

Background/objectives:In sedentary adults, hydration is mostly influenced by total fluid intake and not by sweat losses; moreover, low daily fluid intake is associated with adverse health outcomes. This study aimed to model the relation between total fluid intake and urinary hydration biomarkers.Subjects/methods:During 4 consecutive weekdays, 82 adults (age, 31.6±4.3 years; body mass index, 23.2±2.7 kg/m2; 52% [...]

By | 2017-05-21T03:14:23+00:00 junio 20th, 2013|Body water content; body composition, Documentos científicos, Regulation of water and electrolyte balance, Water balance|Comentarios desactivados en Hydration biomarkers in free-living adults with different levels of habitual fluid consumption.

Effect of varying the concentrations of carbohydrate and milk protein in rehydration solutions ingested after exercise in the heat.

The present study investigated the relationship between the milk protein content of a rehydration solution and fluid balance after exercise-induced dehydration. On three occasions, eight healthy males were dehydrated to an identical degree of body mass loss (BML, approximately 1•8 %) by intermittent cycling in the heat, rehydrating with 150 % of their BML over [...]

By | 2017-05-21T03:15:30+00:00 junio 20th, 2013|Body water content; body composition, Documentos científicos, Regulation of water and electrolyte balance, Water balance|Comentarios desactivados en Effect of varying the concentrations of carbohydrate and milk protein in rehydration solutions ingested after exercise in the heat.

Effect of maternal hydration on the amniotic fluid volume during maternal rest in the left lateral decubitus position: a randomized prospective study.

Objectives- The purpose of this study was to evaluate the effect of maternal hydration on amniotic fluid volume during maternal rest in the left lateral decubitus position. Methods- Pregnant women (n = 79) with an amniotic fluid index between 6 and 24 cm and a singleton uncomplicated pregnancy at 35 to 40 weeks' gestation were [...]

By | 2017-05-21T03:15:31+00:00 junio 20th, 2013|Assessment methodologies, Body water content; body composition, Documentos científicos, Hydration status: effects on physiology and metabolism, Pregnancy and infancy|Comentarios desactivados en Effect of maternal hydration on the amniotic fluid volume during maternal rest in the left lateral decubitus position: a randomized prospective study.

Physiologic basis for understanding quantitative dehydration assessment.

Dehydration (body water deficit) is a physiologic state that can have profound implications for human health and performance. Unfortunately, dehydration can be difficult to assess, and there is no single, universal gold standard for decision making. In this article, we review the physiologic basis for understanding quantitative dehydration assessment. We highlight how phenomenologic interpretations of [...]

By | 2017-05-21T03:16:34+00:00 abril 26th, 2013|Assessment methodologies, Body water content; body composition, Documentos científicos, Water balance|Comentarios desactivados en Physiologic basis for understanding quantitative dehydration assessment.

What Do Athletes Drink During Competitive Sporting Activities?

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 [...]

By | 2017-05-21T03:16:34+00:00 abril 26th, 2013|Body water content; body composition, Documentos científicos, Exercise and sport, Hydration status of population groups, Thirst, Water balance|Comentarios desactivados en What Do Athletes Drink During Competitive Sporting Activities?

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 [...]

By | 2017-05-21T03:16:35+00:00 abril 26th, 2013|Body water content; body composition, Documentos científicos, Hydration status of population groups, Thirst, Water balance|Comentarios desactivados en The Effects of High Intensity Intermittent Exercise Compared to Continuous Exercise on Voluntary Water Ingestion.

The effect of acute fluid consumption and hydration status on percent body fat and minimum wrestling weight.

ABSTRACT: The weight certification program for wrestling requires a urine specific gravity (Usg) < 1.020. However, the effect of acute rehydration on percent body fat (%BF) and minimum wrestling weight (MWW) is largely unknown. We examined the effect of acute fluid consumption on %BF and MWW. Twenty-five male subjects (18-22 y) were tested in a [...]

By | 2017-05-21T03:16:56+00:00 enero 31st, 2013|Body water content; body composition, Documentos científicos|Comentarios desactivados en The effect of acute fluid consumption and hydration status on percent body fat and minimum wrestling weight.