EFFECT OF HYDRATION STATE ON CIRCULATORY AND THERMAL REGULATIONS.
No abstract available.
CLINICAL PRESENTATION OF HYPERNATREMIA IN ELDERLY PATIENTS: A CASE CONTROL STUDY
OBJECTIVES: To assess early clinical signs and their prognostic value in elderly patients with hypernatremia. DESIGN: Prospective, case control study of 150 patients with hypernatremia matched to 300 controls. SETTING: Multicenter study including seven short- and long-term geriatric care facilities. MEASUREMENTS: Clinical assessment of hydration status at bedside, such as abnormal skin turgor or dry [...]
EFFECT OF WATER INGESTION ON ENDURANCE CAPACITY DURING PROLONGED RUNNING
This study examined the influence of water ingestion on endurance capacity during submaximal treadmill running. Four men and four women with a mean (+/-S.E.) age of 21.4 +/- 0.7 years, height of 169 +/- 2 cm, body mass of 63.1 +/- 2.9 kg and VO2 max of 51.1 +/- 1.8 ml kg-1 min-1, performed two [...]
MEASUREMENT OF TOTAL WATER EXCHANGE.
No abstract available.
ALTERED WATER EXCRETION IN HEALTHY ELDERLY MEN
The renal and vasopressin (AVP) response to a standard oral water load (20 ml/kg) was examined in a group of water-replete healthy elderly men (n = 6). Two groups, respectively, of water-replete and water-deprived young healthy volunteers acted as controls. After 2 h, the old group had excreted 41 +/- 2.4% (mean +/- SEM) of [...]
WATER AND CARBOHYDRATE INGESTION DURING PROLONGED EXERCISE INCREASE MAXIMAL NEUROMUSCULAR POWER.
This study investigated the individual and combined effects of water and carbohydrate ingestion during prolonged cycling on maximal neuromuscular power (P(max)), thermoregulation, cardiovascular function, and metabolism. Eight endurance-trained cyclists exercised for 122 min at 62% maximal oxygen uptake in a 35 degrees C environment (50% relative humidity, 2 m/s fan speed). P(max) was measured in [...]
PEAK RATES OF DIERESIS IN HEALTHY HUMANS DURING ORAL FLUID OVERLOAD.
OBJECTIVE: To determine whether rates of intestinal fluid absorption and renal diuresis can match high rates of fluid ingestion in healthy humans exposed to oral fluid overload, thereby preventing the development of hyponatraemia either by reverse sodium movement across the intestine (the Priestley-Haldane effect) or by expansion of the extracellular fluid volume. METHODS: Changes in [...]
MECHANISMS OF RENAL TUBULAR DEFECTS IN OLD AGE
The mechanisms of renal tubular dysfunction in old age have been examined in twenty-eight clinically healthy elderly subjects without infection, and in fourteen subjects of similar age with laboratory evidence of intrarenal infection. The data were compared with those from thirteen clinically healthy young subjects. Studied were: proximal tubular (Tm(PAH)) and distal tubular (CH2O) activity, [...]
THERMAL EFFECTS OF PROLONGED TREADMILL EXERCISE IN THE HEAT
No abstract available.
DISTRIBUTION OF WATER LOSSES AMONG FLUID COMPARTMENTS OF TISSUES UNDER THERMAL DEHYDRATION IN THE RAT
Dehydration amounting to about 10% of body weight was induced in adult male rats by exposure to a hot, dry environment (D.B.T., 36 degrees C; R.H., 20%) over 6 to 8 hr. The volumes of total water (TW), extracellular fluid (ECF), and plasma (PV) were determined both on individual tissues and on the whole body [...]