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Optimizing Cold Water Immersion for Exercise-Induced Hyperthermia: A Meta-analysis
COOLING RECTAL TEMPERATURE EXERTIONAL HEAT ILLNESS SYSTEMATIC REVIEW
2017/4/20
Cold water immersion (CWI) provides rapid cooling in events of exertional heat stroke. Optimal procedures for CWI in the field are not well established. This meta-analysis aimed to provide structured ...
Effects of head-out water immersion on cardiorespiratory responses to maximal cycling exercise
human head-out immersion scuba breathing exercise cardiorespiratory
2009/7/20
Our objectives were to determine effects of head-out immersion (HOI), scuba breathing, and water temperature on cardiorespiratory responses to maximal aerobic work. Measurements of VO2, VE, and heart ...
Respiratory gas exchange and lung perfusion in man during and after head-out water immersion
CO2 carbon dioxide carbon monoxide pulmonary human CO
2009/7/20
The respiratory gas exchange for O2, CO2, and CO has been studied in nine healthy male subjects before, during, and after head-out water immersion. Distribution of lung perfusion and ventilation were ...
physiology of water immersion
human immersion
2009/7/15
Mechanical and physical factors in lung function during work in dense environments.
Water immersion and the kidney: implications for volume regulation
human Immersion Diuresis volume regulation Undersea Biomed Res
2009/7/15
Studies from this laboratory have demonstrated that head-out immersion in isothermic water causes a cephalad redistribution of blood volume. The resultant central hypervolemia induces a marked natriur...
Cardiovascular and renal responses to head-out water immersion in canine model
cardiovascular cardiac output dog animal immersion renal
2009/7/15
Water immersion (WI) of anesthetized dogs to the midcervical level in the vertical sitting position under thermoneutral conditions (38 degrees C) leads to generalized increases in regional blood flows...
Body cooling in human males by cold-water immersion after vigorous exercise
human cold-water immersion vigorous exercise
2009/7/15
Five male subjects were immersed to neck level in a whole-body water calorimeter (water temperature 19 degrees C) on two occasions. One immersion was preceded by 30 min of exercise on a treadmill at 8...
Cardiac output by impedance cardiography during head-out water immersion
human immersion cardiac
2009/7/14
This study was undertaken to ascertain the suitability of impedance cardiography for qualifying cardiac output during water immersion where the electrodes were wet. The cardiac output was compared dur...
Effect of hydrostatic pressure on plasma concentrations of norepinephrine during cold water immersion
human plasma norepinephrine thermal immersion
2009/7/14
Head-out immersion of humans in cold water concurrently stimulates low-pressure receptors and cutaneous cold receptors. In theory, the low-pressure receptors inhibit sympathetic nerve activity to the ...
Respiratory and cardiovascular responses to cold stress following repeated cold water immersion
cold CO2 carbon dioxide cardiac output air immersion Respiratory cardiovascular
2009/7/9
The effects of cold acclimation (CA) on the cardiorespiratory responses to cold air and water stress tests (CST) were studied in 7 males before and after a CA program of daily 90-min cold water (18 de...
Failure to reduce body water loss in cold-water immersion by glycerol ingestion
immersion glycerol ingestion water retention
2009/6/12
The efficacy of ingesting an aqueous glycerol solution to enhance body water retention during prolonged cold-water dives was evaluated. Nine Naval Special Warfare divers performed a 3-h dive in 13 deg...
Are beta-endorphins and thermoregulation during cold-water immersion related?
cold beta-endorphin thermoregulation immersion
2009/6/12
The purpose of this investigation was to determine the relationship between core temperature (Tre), tissue insulation (I), and beta-endorphins (beta-END) during immersion in cold water. To test this, ...
Effects of prolonged CO2 inhalation on shivering thermogenesis during cold-water immersion
CO2 carbon dioxide human air shivering immersion thermal cold
2009/6/12
We investigated the effect of prolonged hypercapnia on human thermoregulation during immersion of seven male subjects in a 15 degrees C water bath until their esophageal temperature dropped to 35 degr...
Physiologic and perceptual responses to hypercarbia during warm- and cold-water immersion
cold exercise CO2 carbon dioxide immersion hypercarbia Physiologic perceptual
2009/6/8
Thermoregulatory, respiratory, and perceptual responses to acute CO2 exposure during light exercise (75 W) were assessed in 12 U.S. Navy divers clad only in swim trunks while immersed to the neck in w...
Subacute effects of inspiratory resistive loading and head-out water immersion on pulmonary function
carbon monoxide pulmonary immersion
2009/6/8
Extrathoracic airways obstruction and scuba diving may induce pulmonary edema, probably because of increased hydrostatic transmural capillary pressure in the lung. This study was designed to examine t...