搜索结果: 1-15 共查到“军事医学与特种医学 Immersion”相关记录42条 . 查询时间(0.08 秒)
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 ...
Changes in left ventricular activity during apnea and face immersion
human face immersion left ventricular function apnea cardiac
2009/7/20
Apneic face immersion in water has been analyzed with respect to its effects upon heart rate and ventricular function in a group of highly trained teenaged swimmers of both sexes. Both parameters have...
Eustachian tubal function during immersion
Ivarsson,A Lundgren,CEG Tjernstrom,O Uddman,R Ornhagen,HC
2009/7/20
The effects of head-out immersion on active and passive middle ear pressure equilibration were studied in three otologically normal scuba divers. Results were compared with the equilibration capacity ...
Influence of hydrostatic compression of the chest and intrathoracic blood pooling on static lung mechanics during head-out immersion
human immersion intrathoracic blood pooling respiratory
2009/7/20
The effect of water immersion on static lung volumes and pressure-volume curves was studied in five subjects. A special container allowed measurements during nonimmersion, head-out immersion, and thor...
Physiological responses to head-out immersion in water at 11 ATA
hyperbaric cardiac output human head out immersion immersion diuresis
2009/7/17
Cardiorespiratory, thermal, and renal responses to a 30-min head-out immersion in 15 degree C water were studied at 1-ATA air and 11-ATA helium-oxygne environments in four male subjects wearing dry su...
Effects of immersion and static lung loading on submerged exercise at depth
CO2 carbon dioxide human exercise immersion
2009/7/17
The effects of static lung loading in the range +20 cmH2O to -20 cmH2O was investigated in 3 male subjects breathing air during submerged exercise in the prone position at pressures ranging from 1.45 ...
Pulmonary capillary blood volume during immersion in water at different temperatures
human Pulmonary immersion temperature
2009/7/16
Pulmonary capillary blood volume (Qc) was determined for 7 subjects in the standing posture and immersed up to the sternal manubrium at three water temperatures: 34 degrees C +/- 0.5 degrees C, therma...
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...
Field study of ventilation in volunteer scuba divers during head-out immersion
human ventilation immersion exercise respiratory
2009/7/15
Seven subjects had spirometric studies during head-out immersion before and after working at depth in coral research. Under the variable environmental conditions of a field study the seven subjects de...
Catecholamine levels in divers subjected to stresses of immersion and hyperbaric exposure
immersion exposure decompression procedures carbon dioxide
2009/7/15
The study was undertaken to determine the changes in plasma catecholamine levels in response to the combined stresses of cool water immersion and hyperbaric exposure. Plasma catecholamines were measur...
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...
Circulatory functions during immersion and breath-hold dives in humans
cardiac output dives humans
2009/7/15
An unusual circulatory state exists in humans immersed in water at or near 35 degrees C. This circulatory state is characterized by a persistent and elevated stroke index (SI) but heart rate (HR) chan...