Effects of Inspiratory Muscle Training and High-Intensity Interval Training on Lung Function and Respiratory Muscle Function in Asthma

作者：Qimin Wang, Feng Yang, Lianjun Gao, Wei Gao · 发表于：Respiratory Care · 年份：2022 · DOI：10.4187/respcare.09813 · 被引用次数：14 · 研究领域：Asthma and respiratory diseases、Chronic Obstructive Pulmonary Disease (COPD) Research、Cardiovascular and exercise physiology

BACKGROUND: Asthma is a heterogeneous disease, usually characterized by chronic airway inflammation. Although inspiratory muscle training (IMT) and high-intensity interval training (HIIT) are beneficial for patients with asthma, controversies persist. Therefore, we aimed to investigate the effects of IMT and HIIT on lung function and respiratory muscle function of subjects with asthma. METHODS: We searched PubMed, Embase, Web of Science, and the Cochrane Library databases up to May 2021. Inclusion criteria were randomized controlled trials (RCTs) of subjects with asthma who received either IMT or HIIT. The outcome measures were changes in lung function and respiratory muscle function. RESULTS: A total of 13 RCTs (10 in IMT and 3 in HIIT) were included, with a total of 598 subjects. The meta-analysis showed a significantly improved FEV 1 of the expected value (FEV 1 %pred) (mean difference [MD] 4.49% [95% CI 2.31–6.67], P < .001; I 2 = 13%), FVC of the expected value (FVC % pred) (MD 5.72% [95% CI 3.56–7.88], P < .001; I 2 = 0%), FEV 1 /FVC % (MD 5.01% [95% CI 2.45–7.58], P < .001; I 2 = 25%), FVC (L) (MD 0.21 L [95% CI 0.03–0.40], P = .02; I 2 = 0%), maximum inspiratory pressure (P Imax ) (MD 27.62 cm H 2 O [95% CI 6.50–48.74], P = .01; I 2 = 96%), and P Imax (%pred) (MD 27.35% [95% CI 6.94–47.76], P = .009; I 2 = 83.5%) in the IMT group. There was no statistical significance in maximum expiratory pressure. CONCLUSIONS: IMT improved pulmonary function (FEV 1 %pred, F...