Does the provision of cooled filtered water in secondary school cafeterias increase water drinking and decrease the purchase of soft drinks?

BACKGROUND: Secondary school students often do not drink sufficient quantities of water during the school day to prevent dehydration, promote learning and good health. The study aimed to measure the effect of health promotion and the free provision of cooled filtered water on the consumption of water and soft drinks. It also aimed to explore students' views of drinking water provision. METHODS: A study was conducted with three secondary schools in North Tyne side. [...]

By |2017-05-21T03:19:29+00:00enero 31st, 2013|Assessment methodologies, Documentos científicos|Comentarios desactivados en Does the provision of cooled filtered water in secondary school cafeterias increase water drinking and decrease the purchase of soft drinks?

Promotion and provision of drinking water in schools for overweight prevention:randomized, controlled cluster trial.

OBJECTIVE: The study tested whether a combined environmental and educational intervention solely promoting water consumption was effective in preventing overweight among children in elementary school. METHODS: The participants in this randomized, controlled cluster trial were second- and third-graders from 32 elementary schools in socially deprived areas of 2 German cities. Water fountains were installed and [...]

By |2017-05-21T03:19:29+00:00enero 31st, 2013|Assessment methodologies, Documentos científicos|Comentarios desactivados en Promotion and provision of drinking water in schools for overweight prevention:randomized, controlled cluster trial.

Effect of aging on regional cerebral blood flow responses associated with osmoticthirst and its satiation by water drinking: a PET study.

Levels of thirst and ad libitum drinking decrease with advancing age, making older people vulnerable to dehydration. This study investigated age-related changes in brain responses to thirst and drinking in healthy men. Thirst was induced with hypertonic infusions (3.1 ml/kg 0.51M NaCl) in young (Y) and older (O) subjects. Regional cerebral blood flow (rCBF) was measured with positron emission tomography (PET). Thirst activations were identified by correlating rCBF with thirst ratings. Average rCBF was measured from regions [...]

By |2017-05-21T03:19:10+00:00enero 31st, 2013|Assessment methodologies, Documentos científicos|Comentarios desactivados en Effect of aging on regional cerebral blood flow responses associated with osmoticthirst and its satiation by water drinking: a PET study.

Role of osmolality and plasma volume during rehydration in humans.

To determine how the sodium content of ingested fluids affects drinking and the restoration of the body fluid compartments after dehydration, we studied six subjects during 4 h of recovery from 90-110 min of a heat [36 degrees C, less than 30% relative humidity (rh)] and exercise (40% maximal aerobic power) exposure, which caused body [...]

By |2017-05-21T03:19:11+00:00enero 31st, 2013|Assessment methodologies, Documentos científicos|Comentarios desactivados en Role of osmolality and plasma volume during rehydration in humans.

“Skeletal Muscle Strength and Endurance are Maintained during Moderate Dehydration.”

This study investigated the effects of moderate dehydration (~2.5% body weight) on muscle strength and endurance using percutaneous electrical stimulation to quantify central and peripheral fatigue, and isolate the combined effects of exercise-heat stress and dehydration, vs. the effect of dehydration alone. Force production and voluntary activation were calculated in 10 males during 1 brief [...]

By |2017-05-21T03:19:30+00:00enero 31st, 2013|Assessment methodologies, Documentos científicos|Comentarios desactivados en “Skeletal Muscle Strength and Endurance are Maintained during Moderate Dehydration.”

Assessing hydration status.

PURPOSE:Understanding the importance of euhydration in humans in order to ensure good health in various situations, the purpose of this review is to examine the available techniques in assessing hydration status. RECENT FINDINGS: During the past 20 years, many indices have been developed to assess hydration levels accurately in humans. Changes in body weight, haematological and urine parameters, bioelectrical impedance, [...]

By |2017-05-21T03:20:41+00:00enero 31st, 2013|Assessment methodologies, Documentos científicos|Comentarios desactivados en Assessing hydration status.

Sex difference of urinary osmolality in German children.

BACKGROUND/AIMS: Origin of sex difference in urinary osmolality. METHODS: In 495 healthy children aged 4.0-14.9 years participating in the DONALD (Dortmund Nutritional and Anthropometric Longitudinally Designed) study (247 boys, 248 girls), the water intake recorded in 24-hour weighed dietary records along with urinary volume, osmolality and free water reserve in 24-hour urine samples from the same day as the dietary record were determined. RESULTS: Boys showed [...]

By |2017-05-21T03:20:41+00:00enero 31st, 2013|Assessment methodologies, Documentos científicos|Comentarios desactivados en Sex difference of urinary osmolality in German children.

Effect of sodium in a rehydration beverage when consumed as a fluid or meal.

To investigate the impact of fluid composition on rehydration effectiveness, 30 subjects (15 men and 15 women) were studied during 2 h of rehydration after a 2.5% body weight loss. In a randomized crossover design, subjects rehydrated with water (H2O), chicken broth (CB: 109.5 mmol/l Na, 25.3 mmol/l K), a carbohydrate-electrolyte drink (CE: 16.0 mmol/l [...]

By |2017-05-21T03:20:42+00:00enero 31st, 2013|Assessment methodologies, Documentos científicos|Comentarios desactivados en Effect of sodium in a rehydration beverage when consumed as a fluid or meal.

Effects of solution osmolality on absorption of select fluid replacement solutionsin human duodenojejunum.

These experiments examined relationships between initial osmolality and carbohydrate (CHO) composition of an infused solution and osmolality and water and CHO absorption in a test segment. A triple-lumen tube with a 10-cm mixing segment and a 40-cm test segment was passed into the duodenojejunum. The infusion port was approximately 10 cm beyond the pyloric sphincter. [...]

By |2017-05-21T03:21:04+00:00enero 31st, 2013|Assessment methodologies, Documentos científicos|Comentarios desactivados en Effects of solution osmolality on absorption of select fluid replacement solutionsin human duodenojejunum.