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 [...]

By |2013-01-31T18:34:19+00:00enero 31st, 2013|Exercise and sport, Scientific papers|0 Comments

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 [...]

By |2013-01-31T18:34:19+00:00enero 31st, 2013|Exercise and sport, Scientific papers|0 Comments

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 [...]

By |2013-01-31T18:34:19+00:00enero 31st, 2013|Pregnancy and infancy, Scientific papers|0 Comments

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 [...]

By |2013-01-31T18:34:19+00:00enero 31st, 2013|Age and the elderly, Scientific papers|0 Comments

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 [...]

By |2013-01-31T18:34:19+00:00enero 31st, 2013|Assessment methodologies, Scientific papers|0 Comments

THE STATEMENT OF POLISH GYNAECOLOGIC SOCIETY EXPERTS CONCERNING DRINKING WATER CONSUMPTION IN WOMEN IN REPRODUCTIVE AGE, PREGNANCY AND BREAST FEEDING

Water is a substance essential for life. It creates the environment of our body, keeps it's homeostasis, enables every biochemical reaction and metabolic processes in human organism. Maternal hydratation is essential for homeostasis of two organisms and drinking water influences the amniotic fluid volume, fetal well-being and removes toxic metabolic products. The chemical contaminants of [...]

By |2013-01-31T18:34:19+00:00enero 31st, 2013|Pregnancy and infancy, Scientific papers|0 Comments

OLYCYTHEMIA AND HYDRATION: EFFECTS ON THERMOREGULATION AND BLOOD VOLUME DURING EXERCISE-HEAT STRESS

We studied the effects of autologous erythrocyte infusion on thermoregulation and blood volume during exercise in the heat. Specifically, we wanted to determine whether heat-acclimated subjects, as well as hypohydrated subjects, would have a thermoregulatory advantage from acute polycythemia during exercise in the heat. Five heat-acclimated males attempted four heat stress tests (HSTs): two pre- [...]