THE KIDNEY AND BODY FLUID BALANCE DURING EXERCISE
No abstract available.
THE INFLUENCE OF NUTRITIONAL ERGOGENIC AIDS ON EXERCISE HEAT TOLERANCE AND HYDRATION STATUS.
Exercise in the heat may predispose an athlete to an exertional heat illness. It is imperative to be knowledgeable on the influence of various nutritional supplements on exercise tolerance and hydration status. Because of the variety of nutritional ergogenic aids that are easily accessible to athletes, medical and health professionals must rely on empirical evidence [...]
HYPOHYDRATION AND EXERCISE: EFFECTS OF HEAT ACCLIMATION, GENDER, AND ENVIRONMENT
This study examined the effects of heat acclimation and subject gender on treadmill exercise in comfortable (20 degrees C, 40% rh), hot-dry (49 degrees C, 20% rh), and hot-wet (35 degrees C, 79% rh) environments while subjects were hypo- or euhydrated. Six male and six female subjects, matched for maximal aerobic power and percent body [...]
IOWA WRESTLING STUDY: URINARY PROFILES OF STATE FINALISTS PRIOR TO COMPETITION
No abstract available.
COMPARISON OF FLUID BALANCE BETWEEN COMPETITIVE SWIMMERS AND LESS ACTIVE ADOLESCENTS.
The aim of this study was to compare daily hydration profiles of competitive adolescent swimmers and less active maturation- and sex-matched controls. Hydration profiles of 35 competitive adolescent swimmers (male n = 18, female n = 17) and 41 controls (male n = 29, female n = 12) were monitored on 4 consecutive days. First [...]
INFLUENCE OF HYDRATION LEVEL AND BODY FLUIDS ON EXERCISE PERFORMANCE IN THE HEAT
During exercise in the heat, sweat output often exceeds water intake, resulting in hypohydration, which is defined as a body fluid deficit. This fluid deficit is comprised of water loss from both the intracellular and extracellular fluid compartments. Hypohydration during exercise causes a greater heat storage and reduces endurance in comparison with euhydration levels. The [...]
RECURRENT PREGNANCY-INDUCED POLYURIA AND THIRST DUE TO HYPOTHALAMIC DIABETES INSIPIDUS: AN INVESTIGATION INTO POSSIBLE MECHANISMS RESPONSIBLE FOR POLYURIA.
A young patient developed hypothalamic diabetes insipidus due to histiocytosis in infancy and was satisfactorily treated with Pitressin. As a teenager she no longer had thirst or polyuria after treatment was stopped. These symptoms only returned during her two pregnancies. When non-pregnant her urine output was 1.7-2.0 1/24 h, basal plasma osmolality 288-290 mOsm/kg, and [...]
THE HYDRATION INFLUENCE ON THE RISK OF STROKE (THIRST) STUDY
OBJECTIVE: There is a decreased sensation of thirst and often dehydration among the elderly population. It is unclear whether it represents a contributing factor for cerebral ischemic events. DESIGN: Consecutive patients presenting to a University Hospital within 24 h of symptom onset, and a discharge diagnosis of acute ischemic stroke or transient ischemic attack in [...]
THERMOREGULATORY AND BLOOD RESPONSES DURING EXERCISE AT GRADED HYPOHYDRATION LEVELS
We studied the effects of graded hypohydration levels on thermoregulatory and blood responses during exercise in the heat. Eight heat-acclimated male subjects attempted four heat-stress tests (HSTs). One HST was attempted during euhydration, and three HSTs were attempted while the subjects were hypohydrated by 3, 5, and 7% of their body weight. Hypohydration was achieved [...]
ESTIMATING BODY COMPOSITION IN LATE GESTATION: A NEW HYDRATION CONSTANT FOR BODY DENSITY AND TOTAL BODY WATER.
Twenty women underwent body density (DB) measurements using underwater weighing with correction of residual lung volume by nitrogen dilution and total body water (TBW) using isotope dilution of 18O to estimate body composition at 30 wk of gestation. DB and TBW were used as independent variables in the same equation. The hydration constant (HC) of [...]