人在高气压下,例如承受水压的潜水时,呼吸空气,肺呼吸功能将发生一系列的变化。如果说,在常压下限制人作功的主要因素是心血管功能,那么在高气压下其限制因素可能就是呼吸功能了。因此,研究高气压下肺呼吸功能的变化,对做好潜水作业的医务保障工作是至关重要的。为此,我们对人在100～500kPa(1～5ATA)气压下,呼吸空气时,肺呼吸功能的变化进行了多项指标的测验和评价,报道如下。 A person under high pressure, such as pressure diving, breathing air, lung respiratory function will be a series of changes. If we say that the main factor limiting people’s work at atmospheric pressure is cardiovascular function, then the limiting factor at high pressure may be respiratory function. Therefore, to study the changes of lung respiration under high pressure is very important for the medical insurance for diving operation. To this end, we conducted a number of tests and evaluations on the changes of lung respiratory function when we breathe air under 100 ~ 500kPa (1 ~ 5ATA) pressure, and the report is as follows.