EFFECT OF PRIMARY HYPOHYDRATION ON PHYSICAL WORK CAPACITY.
No abstract available.
INFLUENCE OF HYDRATION STATUS AND FLUID REPLACEMENT ON HEAT TOLERANCE WHILE WEARING NBC PROTECTIVE CLOTHING.
The purpose of the present study was to investigate the influence of hypohydration and fluid replacement on tolerance to an uncompensable heat stress. Eight healthy young males completed a matrix of six trials in an environmental chamber, set at 40 degrees C and 30% relative humidity, while wearing nuclear, biological, and chemical protective clothing. Subjects [...]
HYDRATION AT THE WORK SITE.
When performing physical work, sweat output often exceeds water intake, producing a body water deficit or dehydration. Specific to the work place, dehydration can adversely affect worker productivity, safety, and morale. Legislative bodies in North America such as the Occupational Safety and Health Administration (OSHA) and the American Conference of Governmental Industrial Hygienists (ACGIH) recommend [...]
BLOOD CIRCULATION AND TEMPERATURE OF MEN DEHYDRATING IN THE HEAT.
No abstract available.
BLOOD VOLUME: ITS ADAPTATION TO ENDURANCE TRAINING.
Expansion of blood volume (hypervolemia) has been well documented in both cross-sectional and longitudinal studies as a consequence of endurance exercise training. Plasma volume expansion can account for nearly all of the exercise-induced hypervolemia up to 2-4 wk; after this time expansion may be distributed equally between plasma and red cell volumes. The exercise stimulus [...]
ALTITUDE ACCLIMATIZATION AND BLOOD VOLUME: EFFECTS OF EXOGENOUS ERYTHROCYTE VOLUME EXPANSION.
We studied sea-level residents during 13 days of altitude acclimatization to determine 1) altitude acclimatization effects on erythrocyte volume and plasma volume, 2) if exogenous erythrocyte volume expansion alters subsequent erythrocyte volume and plasma volume adaptations, 3) if an increased blood oxygen content alters erythropoietin responses during altitude acclimatization, and 4) mechanisms responsible for plasma [...]
DEHYDRATION AND MUSCULAR WORK
No abstract available.
BLOOD VOLUME: IMPORTANCE AND ADAPTATIONS TO EXERCISE TRAINING, ENVIRONMENTAL STRESSES, AND TRAUMA/SICKNESS.
This paper reviews the influence of several perturbations (physical exercise, heat stress, terrestrial altitude, microgravity, and trauma/sickness) on adaptations of blood volume (BV), erythrocyte volume (EV), and plasma volume (PV). Exercise training can induce BV expansion: PV expansion usually occurs immediately, but EV expansion takes weeks. EV and PV expansion contribute to aerobic power improvements [...]