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本文对慢性阻塞性肺病（ＣＯＰＤ）患者、正常人各２０例运动试验高峰时潮气量（ＰｋＶｔ）、呼吸率（Ｐｋｆｂ）的改变进行分析及探讨，结果表明：ＣＯＰＤ组第１８用力呼气量／用力肺活量（ＦＥＶ＿１／ＦＶＣ）、最大通气量（ＭＶＶ）明显低于对照组（５７．０±９．２３％、８２．９５±１０．３７％；４４．７±１６．９９Ｌ／ｍｉｎ、９２．３±１２．４８Ｌ／ｍｉｎ，Ｐ＜０．００１）。ＣＯＰＤ组ＰｋＶｔ低于对照组（１．０７±０．４２Ｌ、１．５４±０．３５Ｌ，Ｐ＜０．００１），而Ｐｋｆｂ、ＰｋＶｄ／Ｖｔ高于对照组（３２．３±６．６５／ｍｉｎ、２８．３±５．３９／ｍｉｎ；０．２７±０．０６、０．２１±０．０５），ＰｋＶｔ与ＭＶＶ呈正相关（ｒ＝０．７１，Ｐ＜０．００１）；与ＰｋＶｄ／Ｖｔ呈负相关（ｒ＝一０．７１，Ｐ＜０．００１），ＣＯＰＤ患者运动时浅快呼吸可增加耗氧量和呼吸肌疲劳，限制运动耐量。
In this paper, 20 cases of chronic obstructive pulmonary disease (COPD) patients, normal exercise test peak tidal volume (PkVt), respiratory rate (Pkfb) changes were analyzed and discussed, the results show that: COPD group forced expiratory volume 18 / The forced vital capacity (FEV_1 / FVC) and maximum ventilation (MVV) were significantly lower than those in the control group (57.0 ± 9.23%, 82.95 ± 10.37%; 44.7 ± 16.99L / min, 92). 3 ± 12.48 L / min, P <0.001). PkVt in COPD group was lower than that in control group (1.07 ± 0.42L, 1.54 ± 0.35L, P <0.001), Pkfb and PkVd / Vt were higher than those in control group (32.3 ± 6.65 / min, 28.3 ± 5.39 / min; 0.27 ± 0.06,0.21 ± 0.05). There was a positive correlation between PkVt and MVV (r = 0.71, P <0.001) / Vt was negatively correlated (r = -0.71, P <0.001). Short breathing during exercise in patients with COPD increased oxygen consumption and respiratory muscle fatigue, limiting exercise tolerance.