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为探索中老年职工肺功能与工作能力的关系，采用现场调查法对成都地区２８５名不同职业的中老年职工进行肺功能〔用力肺活量（ＦＶＣ）、一秒钟用力呼气容积（ＦＥＶ１）、一秒率（ＦＥＶ１％）、用力呼气中段平均流量（ＭＭＥＦ），将前三项指标等级化值之和得肺功能指数（ＰＦＩ）〕和工作能力指数（ＷＡＩ）测量。结果显示，ＦＶＣ、ＦＥＶ１％在劳动类型间均具显著性差异（Ｐ＜０．０５），ＦＶＣ在性别间也有显著性差异（Ｐ＜０．０５）。ＦＥＶ１％、ＭＭＥＦ分别和ＷＡＩ有显著的相关关系（Ｐ＜０．０５）；而ＦＶＣ、ＦＥＶ１与ＷＡＩ的关系不明显（Ｐ＞０．０５）。同时，ＰＦＩ与ＷＡＩ分级的一致率达４３．８％：完全不一致率为４．５６％。提示，ＦＥＶ１％、ＭＭＥＦ在中老年在职职工工作能力评价中可能具有潜在应用价值。
In order to explore the relationship between lung function and working ability of middle-aged and elderly employees, on-the-spot investigation was conducted to investigate the relationship between pulmonary function (FVC, FEV1, Seconds rate (FEV1%), forced expiratory mean flow (MMEF), sum of the first three indicators of grade value and pulmonary function index (PFI)] and work ability index (WAI) measurements. The results showed that FVC and FEV1% had significant differences among different types of labor (P <0.05), and there was also significant difference in gender between FVC and FVC (P <0.05). There was a significant correlation between FEV1% and MMEF and WAI (P <0.05). However, the relationship between FEV1 and WAI was not significant (P> 0.05). At the same time, the agreement rate of PFI and WAI grading reached 43.8%: The total inconsistency rate was 4.56%. Prompt, FEV1%, MMEF may have potential application value in evaluating the working ability of middle-aged and elderly employees.