Pulmonary rheography at simulated altitudes of 4 000 and 5 000m in human beings / 第三军医大学学报

ABSTRACT

The effects of the alterations of high altitude(at 4 000m for 48h and then at 5 000m for 24h)on the pulmonary rheography were investigated in 13 healthy male volunteers.It was found that the tonic interval index(Q-aI)was gradually prolonged jthe amplitude,the mean rate of filling and the maximal ascending rate of the systolic wave were gradually decreased.When the volunteers were exposed to 5 000m,the Q-aI/RVET was increased from the sea-level value to 0.319?.010 to 0.400?.016(P