enero 2013 – Página 19 – Cátedra Internacional de Estudios Avanzados en Hidratación

Dehydration: biological considerations, age-related changes and risk factors in older adults

Maintenance of water balance is essential to normal physiologic function and vigorous aging.Â OlderÂ adults, however, frequently experience alterations in fluid homeostasis, which result inÂ dehydration. This article describes the physiology of water balance,Â age-relatedÂ changesÂ that influence fluid regulation, and associatedÂ riskÂ factorsÂ forÂ dehydrationÂ inÂ olderÂ adults. Fluid hygiene is an important health promotion activity for this age group, but when efforts to prevent imbalance are [...]

By CIEAH - ICASH|2017-05-21T03:20:41+00:00enero 31st, 2013|Age and the elderly, Documentos científicos|Comentarios desactivados

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 CIEAH - ICASH|2017-05-21T03:21:04+00:00enero 31st, 2013|Assessment methodologies, Documentos científicos|Comentarios desactivados

Human hydration indices: acute and longitudinal reference values.

It is difficult to describe hydration status and hydration extremes because fluid intakes and excretion patterns of free-living individuals are poorly documented and regulation of human water balance is complex and dynamic. This investigation provided reference values for euhydration (i.e., body mass, daily fluid intake, serum osmolality; M +/- SD); it also compared urinary indices [...]

By CIEAH - ICASH|2017-05-21T03:20:41+00:00enero 31st, 2013|Documentos científicos, Hydration status of population groups|Comentarios desactivados

Volume repletion after exercise-induced volume depletion in humans: replacement of water and sodium losses.

Sodium and water loss during, and replacement after, exercise-induced volume depletion was investigated in six volunteers volume depleted by 1.89 +/- 0.17% (SD) of body mass by intermittent exercise in a warm, humid environment. Subjects exercised in a large, open plastic bag, allowing collection of all sweat secreted during exercise. For over 60 min beginning [...]

By CIEAH - ICASH|2017-05-21T03:21:04+00:00enero 31st, 2013|Assessment methodologies, Documentos científicos|Comentarios desactivados

Diurnal variation in serum and urine electrolytes.

Abstract not available

By CIEAH - ICASH|2017-05-21T03:20:42+00:00enero 31st, 2013|Documentos científicos, Regulation of water and electrolyte balance|Comentarios desactivados

Sodium loading aids fluid balance and reduces physiological strain of trained men exercising in the heat.

PURPOSE: This study was conducted to determine whether preexercise ingestion of a highly concentrated sodium beverage would increase plasma volume (PV) and reduce the physiological strain of moderately trained males running in the heat. METHODS: Eight endurance-trained (.VO2max: 58 mL.kg(-1).min(-1) (SD 5); 36 yr (SD 11)) runners completed this double-blind, crossover experiment. Runners ingested a [...]

By CIEAH - ICASH|2017-05-21T03:21:05+00:00enero 31st, 2013|Assessment methodologies, Documentos científicos|Comentarios desactivados

Urinalysis: a comprehensive review.

A complete urinalysis includes physical, chemical, and microscopic examinations. Midstream clean collection is acceptable in most situations, but the specimen should be examined within two hours of collection. Cloudy urine often is a result of precipitated phosphate crystals in alkaline urine, but pyuria also can be the cause. A strong odor may be the result [...]

By CIEAH - ICASH|2017-05-21T03:20:42+00:00enero 31st, 2013|Documentos científicos, Renal function|Comentarios desactivados

Swallowing, nutrition, and hydration during acute stroke care.

Dysphagia occurs in up to half of patients after anÂ acute strokeÂ and may cause dehydration, undernutrition, and aspiration pneumonia. Current evidence suggests that a systematic program of diagnosis and treatment of dysphagia in anÂ acute strokeÂ management plan may yield dramatic reductions in aspiration pneumonia rates. There is also some evidence thatnutritionalÂ supplementation and properÂ hydrationÂ may reduce morbidity and mortality [...]

By CIEAH - ICASH|2017-05-21T03:21:05+00:00enero 31st, 2013|Documentos científicos, Stroke|Comentarios desactivados

Dehydration and venous thromboembolism thromboembolism after acute stroke.

BACKGROUND:Although it is widely assumed thatÂ dehydrationÂ predisposes toÂ venousÂ thromboembolismÂ (VTE), there are no clinical studies to support this. Aim: To evaluate the relationship between biochemical indices ofÂ dehydrationÂ and VTEafterÂ acuteÂ ischaemicÂ strokeÂ (AIS). DESIGN: Prospective observational study. METHODS: Unselected AIS patients (n = 102) receiving standard thromboprophylaxis with aspirin and graded compression stockings, underwent serial measurements of serum urea, creatinine and osmolality, and [...]

By CIEAH - ICASH|2017-05-21T03:21:05+00:00enero 31st, 2013|Documentos científicos, Hydration status: effects on physiology and metabolism|Comentarios desactivados

WATER, HYDRATION, AND HEALTH

This review examines the current knowledge of water intake as it pertains to human health, including overall patterns of intake and some factors linked with intake, the complex mechanisms behind water homeostasis, and the effects of variation in water intake on health and energy intake, weight, and human performance and functioning. Water represents a critical [...]

By CIEAH - ICASH|2017-05-21T03:20:41+00:00enero 31st, 2013|Documentos científicos, Hydration and health|Comentarios desactivados