Objectives. Congenital diaphragmatic hernia (CDH) is a birth defect affecting the respiratory functions, functional performance, and quality of life (QOL) in school-aged children. Rarely have studies been conducted to evaluate the impacts of respiratory muscle training on school-aged children with postoperative CDH. The current study was designed to evaluate the impacts of respiratory muscle training on respiratory function, maximal exercise capacity, functional performance, and QOL in these children. Methods. This study is a randomized control study. 40 children with CDH (age: 9-11 years) were assigned randomly into two groups. The first group conducted an incentive spirometer exercise combined with inspiratory muscle training (study group, ), whereas the second group conducted only incentive spirometer exercise (control group, ), thrice weekly for twelve consecutive weeks. Respiratory functions, maximal exercise capacity, functional performance, and pediatric quality of life inventory (PedsQL) were assessed before and after the treatment program. Results. Regarding the posttreatment analysis, the study group showed significant improvements in all outcome measures (FVC%, ; FEV1%, ; VO₂max, ; VE/VCO₂ slope, ; 6-MWT, ; and PedsQL, ), whereas the control group did not show significant changes (). Conclusion. Respiratory muscle training may improve respiratory functions, maximal exercise capacities, functional performance, and QOL in children with postoperative CDH. Clinical commendations have to be considered to include respiratory muscle training in pulmonary rehabilitation programs in children with a history of CDH.

中文翻译：

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呼吸肌肉训练对术后先天性膈疝学龄儿童呼吸功能、最大运动能力、功能表现和生活质量的影响。

目标。先天性膈疝（CDH）是一种先天性缺陷，影响学龄儿童的呼吸功能、功能表现和生活质量（QOL）。很少有研究评估呼吸肌训练对术后 CDH 学龄儿童的影响。目前的研究旨在评估呼吸肌训练对这些儿童的呼吸功能、最大运动能力、功能表现和生活质量的影响。方法。本研究为随机对照研究。将40名CDH儿童（年龄：9-11岁）随机分为两组。第一组进行了结合吸气肌训练的激励性肺活量锻炼（研究组，），而第二组只进行了激励性肺量计运动（对照组，)，每周三次，连续十二周。在治疗计划之前和之后评估呼吸功能、最大运动能力、功能表现和儿科生活质量量表 (PedsQL)。结果。关于治疗后分析，研究组在所有结局指标（FVC%、; FEV1%，; 最大摄氧量₂ ,; VE/VCO ₂斜率，; 6-MWT，; 和 PedSQL，），而对照组没有显着变化（）。 结论。呼吸肌训练可改善 CDH 术后儿童的呼吸功能、最大运动能力、功能表现和生活质量。临床推荐必须考虑在有 CDH 病史的儿童的肺康复计划中包括呼吸肌训练。