Manual hyperinflation helps alveolar recruitment, which results in secretion clearance, ventilation improvement, lung co手动式高度充气扩肺术可以有效帮助患者肺泡回复，呈现痰液清除、通气量改善、肺塌陷的部份扩张、顺应性改善、动脉氧合增加和呼吸减少。