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Liquid breathing
Effect of breathing helium on sympathetic nervous and cardiovascular functions
helium Sympathetic Nervous System cardiovascular animal Guinea Pigs cat rat
2009/7/20
Effect of breathing helium on sympathetic nervous and cardiovascular functions.
Increase in plasma growth hormone concentration:a new effect of helium breathing
human plasma growth hormone helium
2009/7/20
Increase in plasma growth hormone concentration: a new effect of helium breathing.
Measurement of helium elimination from man during decompression breathing air or oxygen
human helium elimination decompression
2009/7/20
Air breathing was compared with oxygen breathing during decompression from an 80-20 percent helium-oxygen dive to a depth equivalent to 120 fsw (4.6 ATA) in a dry chamber to see which was the most eff...
Heart rate and respiratory frequency in hydrostatically compressed,liquid-breathing mice
decompression liquid breathing
2009/7/20
The effects of hydraulic compression on heart rate and respiratory frequency were studied in liquid-breathing, hypothermic (17-31 degrees C) mice. Increasing the hydrostatic pressure caused a bradycar...
Xe133 elimination from human fat during negative-and positive-pressure breathing
human Xe133 elimination pressure breathing Adipose Tissue respiration work of breathing
2009/7/20
The elimination of Xe133 from a deposit in the subcutaneous adipose tissue outside the anterior tibial muscle was recorded by an external scintillation detector in 16 human subjects during normal brea...
Effects of increased O2-N2 pressure and breathing apparatus on respiratory function
human nitrox exercise breathing apparatus respiratory work of breathing
2009/7/20
The ventilatory response of four subjects was measured at rest and various intensities of exercise. Experiments were conducted in a dry pressure chamber (1) at 1 ATA and 4 ATA with the subjects breath...
Effect of helium breathing on cardiac arrhythmias induced by coronary occlusion and digitalis in the cat
cardiac arrhythmia helium breathing coronary occlusion digitalis cat animal
2009/7/20
Effect of helium breathing on cardiac arrhythmias induced by coronary occlusion and digitalis in the cat.
Visual evoked responses and EEG's of 16 divers breathing air at 7 ATA
human electrophysiological
2009/7/20
This study is an assessment of individual differences in electrophysiological response under diving conditions normally conducive to nitrogen narcosis. A group of 16 men made two dives each to approxi...
HPNS during rapid compressions of men breathing He-O2 and He-N2-O2 at 300 m and 180 m
human high pressure nervous syndrome heliox trimix compression Tremor
2009/7/17
HPNS during rapid compressions of men breathing He-O2 and He-N2-O2 at 300 m and 180 m.
Alveolar Pco2 during rest and exercise in divers and non-divers breathing O2 at 1 ATA
human divers CO2 hypercapnia
2009/7/17
The extent of hypercapnia in oxygen-breathing subjects was investigated during rest and exercise (650 kpm/min). Divers, ex-divers, and non-divers were studied. Carbon dioxide retention was judged by e...
Positive-pressure oxygen breathing and pulmonary atelectasis during immersion
human oxygen pulmonary atelectasis immersion
2009/7/16
The effect on vital capacity of 1 h of oxygen breathing with and without continuous positive pressure was studied in five subjects during immersion. Vital capacity (VC) was used as an index of pulmona...
Pulmonary atelectasis formation during diving with closed-circuit oxygen breathing apparatus
human rebreather oxygen Pulmonary atelectasis immersion
2009/7/15
The physiological effects of diving with two types of closed-circuit oxygen breathing apparatus were investigated in 4 divers. In one apparatus the breathing bag was mounted on the dorsum and in the o...
EEG and evoked potential changes during gas- and liquid-breathing dives to 1000 msw
compression high pressure nervous syndrome neurological symptoms liquid breathing oxygenated fluorocarbon liquid
2009/7/15
To test the hypothesis that compression in helium gas and compression without gas (hydrostatic compression) both produce the same neurological symptoms of high pressure nervous syndrome (HPNS), groups...
Decompression incidence in air- and liquid-breathing hamsters
decompression Fluorocarbons liquid breathing breathing animal hamster
2009/7/15
The effects of hyperbaric compression on heart rate, rectal temperature, respiratory rate, bubble formation, and survival were studied in three groups of anesthetized golden hamsters (Mesocricetus aur...