Drinking water with a meal: a simple method of coping with feelings of hunger,satiety and desire to eat.

This study examined whether drinking of water with breakfast affects the feelings of satiety and hunger, and how long after the meal this effect is maintained. Eight healthy, normal-weight women had three breakfasts with two extra glasses (4 dl) of water and three similar breakfasts without water. The breakfasts were served on three successive mornings during a 2 week period. The subjects filled in forms with visual analogue [...]

By |2017-05-21T03:19:28+00:00enero 31st, 2013|Assessment methodologies, Documentos científicos|Comentarios desactivados en Drinking water with a meal: a simple method of coping with feelings of hunger,satiety and desire to eat.

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.

Dipstick measurements of urine specific gravity are unreliable.

AIM:To evaluate the reliability of dipstick measurements of urine specific gravity (U-SG). METHODS: Fresh urine specimens were tested for urine pH and osmolality (U-pH, U-Osm) by a pH meter and an osmometer, and for U-SG by three different methods (refractometry, automatic readout of a dipstick (Clinitek-50), and (visual) change of colour of the dipstick). RESULTS: The correlations between the visual U-SG dipstick measurements and U-SG determined by a refractometer and the comparison [...]

By |2017-05-21T03:20:41+00:00enero 31st, 2013|Assessment methodologies, Documentos científicos|Comentarios desactivados en Dipstick measurements of urine specific gravity are unreliable.

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.