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Influence of body posture and ear clearing on body buoyancy during diving
ear posture position buoyancy
2009/7/20
The amount of gas introduced into the gastrointestinal (GI) tract during diving was studied by underwater weighing. The influence of body posture and ear clearing methods was determined. Ten subjects ...
The effects of body position and a vasodilator on xenon133 elimination from human subcutaneous fat
decompression Xenon human Adipose Tissue subcutaneous fat inert gas elimination vasodilator drug body position
2009/7/20
The elimination of Xe133 from a deposit in the subcutaneous adipose tissue adjacent to the anterior tibial muscle was recorded by an external scintillation detector in 16 human subjects in sitting and...
Hana kai ii:a 17-day dry saturation dive at 18.6 ATA.III.Body fluid balance
Hong,SK Claybaugh,JR Frattali,V Johnson,R Kurata,F Matsuda,M McDonough,AA Paganelli,CV Smith,RM Webb,P
2009/7/20
Comprehensive studies on body fluid balance on 5 divers were conducted during the Hana Kai II dive (17 days at 18.6 ATA and 7 days of decompression). Daily urine flow increased from about 2000 ml at 1...
Combined effects of ethanol and hyperbaric air on body sway and heart rate in man
human ethanol drinking narcosis
2009/7/17
Eight amateur divers took part in crossover experiments to study the combined effects of ethanol (0.72 g/kg b.wt.) and hyperbaric air (4 and 6 ATA) on heart rate and body-sway movements. Body sway wit...
Environmental and body temperatures of 52 divers in hyperbaric heliox
human temperature Circadian Rhythm heliox Atmospheric Environment
2009/7/16
Rectal and skin temperatures were recorded over periods as long as 24 h on 52 divers at depths as great as 300 m. Chamber temperature and body temperatures are correlated with depth, and the correlati...
Body heat balance and urine excretion during a 4-day saturation dive at 4 ATA
decompression human thermal urine saturation heliox
2009/7/16
Five male volunteers were exposed for 4 days to a 4-ATA helium-oxygen saturation dive. Partitional calorimetry was performed during 2-h test periods at various ambient temperatures (Ta). Heat producti...
Described is a rodent size whole-body plethysmograph constructed of two concentric Plexiglas cylinders. Chamber temperature is controlled by circulating water of constant temperature between the cylin...
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...
Steady-state body insulation was measured in 7 healthy male subjects during rest and exercise for 3 h in water of 28 degrees C - 32 degrees C. At rest, maximal body insulation increased as a linear fu...
Optimal siting of heat flux transducers for the assessment of body heat loss when immersed in water
human body heat loss immersion method
2009/7/15
Regional heat flux (intensity of heat flow rate, W m-2) was measured using heat flux transducers affixed to the skin surface at 14 sites on the left arm and 15 sites on both the left leg and the trunk...
Seadragon VI: a 7-day saturation dive at 31 ATA. V. Cardiovascular responses to a 90 degree body tilt
saturation cardiovascular dry hyperbaric
2009/7/14
Cardiovascular deconditioning (CD) has been reported to occur in weightlessness, bed rest, and head-out water immersion. An expanded intrathoracic blood volume results, at least initially, in all thes...
Seadragon VI: a 7-day dry saturation dive at 31 ATA. IV. Circadian analysis of body temperature and renal functions
helium heliox dry saturation thermoregulatory Circadian renal
2009/7/14
Circadian rhythms of body temperature and daytime rhythms of urine flow and urinary excretion of electrolytes were investigated in 4 male subjects before, during, and after a 7-d stay in a dry heliox ...
Role of body fat in the prediction of the metabolic response for immersion in cold water
cold immersion body fat Adipose Tissue
2009/7/9
Several empirical models for predicting the metabolic response to a lowered body temperature have been evaluated against available data of young healthy males immersed in cold water under resting cond...
Body cooling with ice for warm-water diving operations
thermal protection diver cooling ice cooled vest commercial
2009/7/9
Physiologic responses were measured on 2 professional divers exposed to a simulated repair work submersed for 60 min in water at temperatures of 34 degrees, 38 degrees, and 42 degrees C. Exposures wer...
Prolonged whole body immersion in cold water: hormonal and metabolic changes
cold saturation diver air immersion hormone metabolic change dry suit
2009/7/9
To characterize metabolic and hormonal responses during prolonged whole body immersion, 16 divers wearing dry suits completed four immersions in 5 degrees C water during each of two 5-day air saturati...