Water intake and post-exercise cognitive performance: an observational study of long-distance walkers and runners.

PURPOSE: The impact of diet on endurance performance and cognitive function has been extensively researched in controlled settings, but there are limited observational data in field situations. This study examines relationships between nutrient intake and cognitive function following endurance exercise amongst a group of 33 recreational runners and walkers. METHODS: All participants (mean age of [...]

By |2017-05-21T03:17:19+00:00enero 31st, 2013|Documentos científicos, Exercise and sport|Comentarios desactivados en Water intake and post-exercise cognitive performance: an observational study of long-distance walkers and runners.

Water consumption, not expectancies about water consumption, affects cognitive performance in adults.

Research has shown that water supplementation positively affects cognitive performance in children and adults. The present study considered whether this could be a result of expectancies that individuals have about the effects of water on cognition. Forty seven participants were recruited and told the study was examining the effects of repeated testing on cognitive performance. [...]

By |2017-05-21T03:17:20+00:00enero 31st, 2013|Documentos científicos, Mental performance|Comentarios desactivados en Water consumption, not expectancies about water consumption, affects cognitive performance in adults.

Hypertonic hyperglycemia progresses to diabetes faster than normotonic hyperglycemia.

To explore whether elevated plasma glucose might progress to diabetes via a mechanism that involves plasma hypertonicity, we evaluated the independent and joint effects of these variables on diabetes risk. Community-dwelling older adults (70+years), who reported no previous diagnosis of diabetes and had glucose levels below 200 mg/dl in the 1992 Duke EPESE survey, were [...]

By |2017-05-21T03:17:45+00:00enero 31st, 2013|Documentos científicos, Hydration and health|Comentarios desactivados en Hypertonic hyperglycemia progresses to diabetes faster than normotonic hyperglycemia.

Plasma volume changes with movement to supine and standing positions.

The chronology of hemoconcentration and hemodilution associated with changes in posture, and the reliability of venous hematocrit (Hct), hemoglobin (Hb), and plasma proteins (PP) as indicators in evaluating changes in plasma volume were determined in seven male subjects. Red cell mass was also measured by the CO method at the termination of the erect and supine positions. Movementto and from supine and erect positions produced consistent, rapid, and progressive changes in Hct, Hb, [...]

By |2017-05-21T03:18:11+00:00enero 31st, 2013|Body water content; body composition, Documentos científicos|Comentarios desactivados en Plasma volume changes with movement to supine and standing positions.

Body weight changes in child and adolescent athletes during a triathlon competition.

We examined young athletes during a triathlon performed in a hot climate. Complete or partial data were available for 95 athletes competing in the National Triathlon Championship in Costa Rica. Mean ± SD for age and body weight (BW) were 13.1 ± 2.5 years and 46.3 ± 11.5 kg, respectively. Race requirements included: 500 m [...]

By |2017-05-21T03:17:45+00:00enero 31st, 2013|Documentos científicos, Exercise and sport|Comentarios desactivados en Body weight changes in child and adolescent athletes during a triathlon competition.

Water intake and risk of breast cancer: a case-control study

Several studies have shown positive associations between diuretic beverage consumption and breast cancer risk (van der Brandt, 1995). Water consumption has been linked to reduced breast cancer risk in a pilot case–control study (Stookey et al. 1997). The study showed that plain water consumption (versus not drinking plain water) was associated with a 4.7 times [...]

By |2017-05-21T03:17:45+00:00enero 31st, 2013|Documentos científicos, Hydration and health|Comentarios desactivados en Water intake and risk of breast cancer: a case-control study

The effect of beverages varying in glycaemic load on postprandial glucose responses, appetite and cognition in 10-12-year-old school children.

Reducing glycaemic index (GI) and glycaemic load (GL) inconsistently improves aspects of cognitive function and appetite in children. Whether altering the GL by lowering carbohydrate relative to protein and fat has a role in these effects is unknown. Therefore, we assessed the differential effects of beverages varying in GL and dairy composition on appetite, energy [...]

By |2017-05-21T03:18:11+00:00enero 31st, 2013|Children, Documentos científicos|Comentarios desactivados en The effect of beverages varying in glycaemic load on postprandial glucose responses, appetite and cognition in 10-12-year-old school children.

Analysis of dehydration and strength in elite badminton players.

BACKGROUND. The negative effects of dehydration on aerobic activities are well established. However, it is unknown how dehydration affects intermittent sports performance. The purpose of this study was to identify the level of dehydration in elite badminton players and its relation to muscle strength and power production. METHODOLOGY: Seventy matches from the National Spanish badminton [...]

By |2017-05-21T03:17:46+00:00enero 31st, 2013|Documentos científicos, Exercise and sport|Comentarios desactivados en Analysis of dehydration and strength in elite badminton players.

Effect of Preexercise Soup Ingestion on Water Intake and Fluid Balance During Exercise in the Heat.

PURPOSE: To determine whether chicken noodle soup before exercise increases ad libitum water intake, fluid balance, and physical and cognitive performance compared with water. METHODS: Nine trained men (age: 25±3y; VO2peak: 54.2±5.1ml·kg-1·min-1; mean±SD) performed cycle exercise in the heat (Wet Bulb Globe Temperature=25.9±0.4ºC) for 90min at 50% VO2peak, 45min after ingesting 355ml of either commercially-available [...]

By |2017-05-21T03:18:11+00:00enero 31st, 2013|Documentos científicos, Exercise and sport|Comentarios desactivados en Effect of Preexercise Soup Ingestion on Water Intake and Fluid Balance During Exercise in the Heat.