Plasma hypertonicity: another marker of frailty?

OBJECTIVES: To determine whether plasma hypertonicity might be a marker of early frailty, this study tested the associations between plasma hypertonicity, incident disability, and mortality in nondisabled older adults. DESIGN: Longitudinal, observational study. SETTING: Community-based. PARTICIPANTS: Older adults (> or =70), who reported no disability and gave blood in the 1992 Duke Established Populations for Epidemiologic Studies of the Elderly survey (n=705), [...]

By |2017-05-21T03:17:46+00:00enero 31st, 2013|Documentos científicos, Hydration and health|Comentarios desactivados en Plasma hypertonicity: another marker of frailty?

Influence of skin type, race, sex, and anatomic location on epidermal barrier function.

The intact skin represents a barrier to the uncontrolled loss of water, proteins, and plasma components from the organism. Owing to its complex structure, the epidermal barrier with its major layer, the stratum corneum, is the rate-limiting unit for the penetration of exogenous substances through the skin. The epidermal barrier is not a static structure. [...]

By |2017-05-21T03:17:43+00:00enero 31st, 2013|Documentos científicos, Hydration and skin|Comentarios desactivados en Influence of skin type, race, sex, and anatomic location on epidermal barrier function.

Interrelations between serum sodium concentration, serum osmolarity and totalexchangeable sodium, total exchangeable potassium and total body water.

Although much is known about the effects of changes in electrolyte and water balance on serum sodium concentration, the quantitative relationships between body composition and the concentration of sodium in serum have not been established. Also, no definitive study has been made of the correspondence between serum sodium concentration and total serum osmolarity. It is [...]

By |2017-05-21T03:17:46+00:00enero 31st, 2013|Body water content; body composition, Documentos científicos|Comentarios desactivados en Interrelations between serum sodium concentration, serum osmolarity and totalexchangeable sodium, total exchangeable potassium and total body water.

Dysphagia, Nutrition, and Hydration in Ischemic Stroke Patients at Admission and Discharge from Acute Care.

Dysphagia may predispose stroke patients toward undernutrition and hydration. These comorbidities increase patient risks for reduced functional outcome and short-term mortality. Despite this impact, available information on relationships among dysphagia, nutrition, and hydration status in acute stroke is limited and conflicted. This study evaluated nutrition and hydration status in ischemic stroke patients with versus without [...]

By |2017-05-21T03:17:43+00:00enero 31st, 2013|Documentos científicos, Stroke|Comentarios desactivados en Dysphagia, Nutrition, and Hydration in Ischemic Stroke Patients at Admission and Discharge from Acute Care.

The hypertonic state.

Evolution has provided an elaborate network of regulatory systems that stabilize body-fluid volume, temperature and composition. This stability insulates cells from an ambient hostile world and assures them the best possible conditions in which to function optimally. When one of these regulatory systems fails, cells and even whole organ systems cannot function properly. This paper [...]

By |2017-05-21T03:18:11+00:00enero 31st, 2013|Body water content; body composition, Documentos científicos|Comentarios desactivados en The hypertonic state.

French children start their school day with a hydration deficit.

Background and Aims: Fluid requirements of children vary as a function of gender and age. To our knowledge, there is very little literature on the hydration status of French children. We assessed the morning hydration status in a large sample of 529 French schoolchildren aged 9-11 years. Methods: Recruited children completed a questionnaire on fluid [...]

By |2017-05-21T03:17:45+00:00enero 31st, 2013|Behaviour: knowledge, understanding and attitudes of the population, Documentos científicos|Comentarios desactivados en French children start their school day with a hydration deficit.

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.

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.