作者用“点值法”对成都市内和郊区842例从事轻、中、重劳动的健康工人、农民和战士作了MEFV曲线和常规肺功能测定,发现工人和农民在低肺容积时流量增加,在高、中肺容积时流量下降,并以农民最明显,重劳动工人次之,轻、中劳动工人较不明显,战士则相反。揭示不同的体力活动方式及生活条件可导致不同肺容积时的流量改变,以适应其代谢增强时的耗氧需求。 Using the “Point Value Method”, MEFV curves and routine lung function tests were conducted on 842 healthy, peasants and soldiers engaged in light, medium and heavy labor in Chengdu and the suburbs. The authors found that the flow of workers and peasants in the low lung volume increased , In the high, lung volume flow decreased, and the most obvious to farmers, heavy laborers followed, light, labor workers less obvious, the warrior is the opposite. Revealing different ways of physical activity and living conditions can lead to different lung volume flow changes in order to adapt to their metabolic needs of oxygen consumption.