Pulmonary rheography at simulated altitudes of 4 000 and 5 000m in human beings
- VernacularTitle:模拟海拔4000m和5000m停留72h人体肺血流图的变化
- Author:
Junyuan WANG
;
Yongjin ZHOU
- Publication Type:Journal Article
- Keywords:
altitude;
plethysmography;
impedance;
heart function tests
- From:Journal of Third Military Medical University
1983;0(04):-
- CountryChina
- Language:Chinese
-
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
