Changes of vital signs and cerebral blood flow after sport in hyperthermal and heavy humid environment
- VernacularTitle:高温高湿环境运动后人生命体征及脑血流的变化
- Author:
Zhenzhou CHEN
;
Ruxiang XU
;
Xiaodan JIANG
- Publication Type:Journal Article
- Keywords:
tropical medicine;
body temperature;
pulse;
blood pressure;
cerebral blood flow;
ultrasonography, Doppler, transcranial
- From:
Medical Journal of Chinese People's Liberation Army
2001;0(07):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the changes of vital signs and cerebral blood flow after sport in hyperthermal and heavy humid environment; and to investigate the effect of Urapidil on these changes. Methods 90 soldiers were divided into three groups: new soldiers group, new soldiers taking Urapidil group and veterans group(as group A,B,C). Their vital signs and cerebral blood flow were measured at quiescent condition in normal temperature and after their running for 3000m within 20 minutes in hyperthermal and heavy humid environment. Results Little difference was found among the three groups at guiescent condition in normal temperature. Whereas after exercise, there was significant elevation in body temperature, pulse, systolic pressure and cerebral blood velocity. On the other hand, a little decline in diastolic pressure was showed, but no obvious changes in pulsatility index(PI) following the exercise. Compared with group A, the average body temperature in group B was lower. The cerebral blood velocity in group C was faster and the PI showed lower. Conclusion Sport in hyperthermal and heavy humid environment could significantly affect vital signs and cerebral blood flow of human. The veterans had acquired better heat adaptation than the new soldiers. Urapidil played an important role in pharmacological hypothermia.
