Dynamic hyperinflation (DH) is a major pathophysiology of COPD that is directly related to dyspnea and exercise intolerance. Positive expiratory pressure (PEP) might reduce DH and dyspnea during exercise, but at present, there is insufficient evidence to conclude whether it is beneficial for DH, dyspnea, and exercise capacity in COPD.

中文翻译：

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锥形 PEP 面罩对慢性阻塞性肺病患者运动的影响。


动态过度充气（DH）是 COPD 的主要病理生理学，与呼吸困难和运动不耐受直接相关。呼气正压 (PEP) 可能会减少运动期间的 DH 和呼吸困难，但目前没有足够的证据来断定它是否有益于 COPD 患者的 DH、呼吸困难和运动能力。