Water turnover in 458 American adults 40-79 yr of age.

Despite recent interest in water intake, few data are available on water metabolism in adults. To determine the average and range of usual water intake, urine output, and total body water, we administered 2H oxide to 458 noninstitutionalized 40- to 79-yr-old adults living in temperate climates. Urine was collected in a subset of individuals (n [...]

By |2013-01-31T18:32:28+00:00enero 31st, 2013|Scientific papers, Water balance|0 Comments

Separate and combined influences of dehydration and hyperthermia on cardiovascular responses to exercise.

During endurance exercise in the heat athletes lose 1-21/h of fluid due to thermoregulatory sweating. The ensuing dehydration is accompanied by higher and faster increases in core temperature, which per se can cause fatigue. The main cardiovascular consequences of combined dehydration and hyperthermia [1 degree C higher core temperature and 3-4 kg (4%) body weight [...]

By |2013-01-31T18:32:28+00:00enero 31st, 2013|Exercise and sport, Scientific papers|0 Comments

Hydration status of community-dwelling seniors.

BACKGROUND AND AIMS: Dehydration is the most common fluid or electrolyte disorder among older persons. This study was designed to examine the hydration status of community-dwelling seniors. METHODS: Blood and urine samples were collected from 67 independently living volunteers (65-93 yrs) who had functional limitations but no condition that contraindicated 10 min of moderate exercise. [...]

By |2013-01-31T18:32:28+00:00enero 31st, 2013|Age and the elderly, Scientific papers|0 Comments

Management of disorders of water metabolism in patients with pituitary tumors.

Disorders of body fluids, notably central diabetes insipidus (CDI) and the syndrome of inappropriate antidiuretic hormone secretion (SIADH), are relatively uncommon as a presenting symptom of sellar and suprasellar masses, but quite common following surgical resection of such lesions. It therefore behooves clinicians treating such patients to have a good understanding of the pathophysiology, the [...]

By |2013-01-31T18:32:28+00:00enero 31st, 2013|Hydration and health, Scientific papers|0 Comments

Feeding and hydration issues for older adults with dementia.

All cultures dictate the need to feed the hungry and create rituals for almost every life passage around the consumption of food and beverage. Yet, in old age and among those who cannot advocate for themselves, mealtime is medicalized and demoted to an insignificant event without dignity or regard for individualized needs. Attention must be [...]

Dehydration in the elderly: strategies for prevention and management.

Dehydration is the most common fluid and electrolyte disturbance among the elderly population today. It is defined as a state of diminished total body water content and is associated with high morbidity and mortality rates. Such health outcomes highlight the urgent need for effective screening and prevention in the primary care arena. Myriad predisposing factors [...]

By |2013-01-31T18:32:27+00:00enero 31st, 2013|Age and the elderly, Scientific papers|0 Comments

Monitoring hydration status in elderly veterans.

Dehydration is a common water and electrolyte disorder in long-term care residents. Practical methods to detect and monitor dehydration are needed. This study determined whether urine color measured by a urine color chart reflects hydration status. The study employed a repeated measures design with two observations during a 10-hour period. Urine color was compared to [...]

By |2013-01-31T18:32:27+00:00enero 31st, 2013|Assessment methodologies, Scientific papers|0 Comments

The relation of hydration status to cognitive performance in healthy older adults.

Little is known about the relation of hydration status to cognitive performance in older adults, who may be more vulnerable to poor hydration and cognitive impairment. We examined whether hydration status was related to cognitive functioning in 28 healthy community-dwelling older adults. Hierarchical regression models demonstrated that lower hydration status was related to slowed psychomotor [...]

By |2013-01-31T18:32:27+00:00enero 31st, 2013|Age and the elderly, Scientific papers|0 Comments