FEF

The clinical manifestations of obliterative bronchiolitis commonly known as BOS ( bronchiolitis obliterans syndrome), of which clinical manifestations are lung function decline, that is, forced expiratory volume in 1 second and FEF decreasing.

闭塞性细支气管炎的临床表现一般被称为闭塞性细支气管炎综合症（Bronchiolitis Obliterans Syndrome，BOS），临床表现为肺功能下降，即第1秒用力呼气量、最大呼气中期流速下降。

FEV 1, PEF, FEF 50, FEF 75 may be used as markers for 6 minute run test.

FEV1 、 PEF 、 FEF50 、 FEF75可作为判断运动试验结果的指标.

FEF ( Forced Expiratory Flow Rate) was measured in 92 smokers without respiratory symptom and 78 healthy non-smokers.

本文对92例无症状吸烟者及78例不吸烟健康人进行最大呼气流速的测定。

There was no difference in FEV 1, FEF 50 between slight asthma group and remission group;

与缓解组第1秒用力呼气流量（FEV1）、50%肺活量时最大呼气流量（FEF50）比较，轻度哮喘组无统计学意义（P0.05）；

FVC and FEF 1 were measured before treatment and every two weeks after treatment.

治疗前和每治疗2周后测定FVC、FEV1.

And the level ofFEF 25, FEF 50, FEF 75, PEF of treatment group was higher than control group ( P & lt; 0.05 orP & lt; 0.01 ).

实验组治疗后FEF25 、 FEF50 、 FEF75 、 PEF的均值均显著高于对照组 ( P & lt; 0.05或P & lt; 0.01 ).