搜索结果: 1-15 共查到“军事医学与特种医学 stress”相关记录20条 . 查询时间(0.562 秒)
Evidence of bacteremia and endotoxemia in mice undergoing hyperbaric stress
animal mice bacteremia endotoxemia Endotoxins microbiology
2009/7/20
Swiss albino mice were exposed to normoxic (PO2 approximately 0.2 ATA) helium at 1, 20 or 35 ATA for 2 or 48 h and examined for the presence of bacteria and endotoxin in selected tissues. Among mice e...
Effect of heat and cold stress on inert gas (133xenon) exchange in the rabbit
Effect heat cold stress inert gas (133xenon) exchange rabbit
2009/7/20
Effect of heat and cold stress on inert gas (133xenon) exchange in the rabbit.
Alterations in mouse fecal flora associated with hyperbaric stress
animal mice fecal microflora hyperbaric heliox
2009/7/16
The effect of hyperbaric stress on the composition of fecal microflora was investigated in the mouse. Mice were exposed to 35 ATA with normoxic PO2 concentration in a helium atmosphere at 35 degrees C...
Venous gas bubble production following cold stress during a no-decompression dive
human thermal bubble exercise
2009/7/16
The effect of cold stress on venous gas bubble production was studied using Doppler ultrasonic monitoring. Ten subjects participated in four exposure regimes carried out at 78 fsw on an underwater pla...
Personality and demographic variables related to individual responsiveness to diving stress
human Personality demographic hyperbaric
2009/7/14
Thirty U.S. Navy divers were tested for 4 personality and 2 demographic variables. They subsequently were exposed to the stress of being pressurized in a small diving chamber for several hours. Stress...
Human vascular fluid responses to cold stress are not altered by cold acclimation
cold human Immersion Diuresis
2009/7/14
Repeated cold water immersion can induce the development of an insulative type of cold acclimation in man. This investigation determined if repeated cold water immersion produced changes in vascular f...
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...
Ocular bubble formation as a method of assessing decompression stress
retinal eye decompression hyperbaric chamber Ocular bubble formati
2009/6/8
Tear film bubble formation and ultrasound reflectivity of the lens-vitreous humor compartments were monitored following simulated dives in a hyperbaric chamber. the sensitivity of these methods in det...
Oxidative stress during a 3.5-hour exposure to 120 kPa(a) PO2 in human divers
dry hyperbaric human superoxide dismutase air nitrox
2009/6/8
We examined the effect of a prolonged dive on measures of oxidative stress in human divers. Ten subjects, wearing dry suits, completed mental tasks while lying quietly at 4.6 m fresh water for 3.5 h. ...
Effect of hyperbaric conditions on plasma stress hormone levels and endothelin-1
hyperbaric air endothelin-1 plasma stress hormone
2009/6/8
To study a generalized stress reaction as well as endothelin-1 concentrations during moderate hyperbaria and hyperbaric oxygen (HBO2), eight professional divers were exposed to air (O2 21%, AIR) and o...
Hyperbaric stress during saturation diving induces lymphocyte subset changes and heat shock protein expression
saturation lymphocyte hyperbaric human heat shock protein
2009/6/5
To clarify the cellular responses and biochemical markers of hyperbaric stress, we investigated heat shock protein (hsp) expression and subset changes of human peripheral blood lymphocytes during satu...
Environmental stress on diving-induced platelet activation
decompression air platelet activation Environmental stress diving
2009/6/5
Platelet activation has been suggested to play an important role in the pathogenesis of prethrombotic states and thus may be responsible for decompression illness during compressed air (scuba) diving....
Effect of air diving exposure generally encountered by recreational divers:oxidative stress?
Biological Markers Breath Tests Diving adverse effects physiology human Malondialdehyde
2009/6/5
Long term effects on respiratory function have been found in air divers and have indicated the development of small-airway disease. These effects have been attributed to oxygen toxicity or to venous g...
Autonomic nervous activity and stress hormones induced by hyperbaric saturation diving
Autonomic Nervous System physiology Biological Markers analysis Blood Pressure Chromogranin A
2009/6/4
This study describes the changes in autonomic nervous activity and stress hormones during a hyperbaric saturation dive up to 4.1 MPa in six subjects. Their autonomic nervous activity was assessed by a...
The heart rate of breath-hold divers during static apnea:effects of competitive stress
breath-hold apnea PERFORMANCE(HUMAN) Immersion physiopathology Immersion facial immersion heart rate
2009/6/2
Breath-hold divers compete with regard to depth, time and/or distance. The present observations were carried out on athletes performing static apnea where they perform one breath-hold for as long a du...