Enhanced diaphragm excursion and exercise tolerance in COPD patients through inspiratory muscle training after standardised pulmonary rehabilitation: randomised controlled trial.

IF 4.3 3区医学 Q1 RESPIRATORY SYSTEM ERJ Open Research Pub Date : 2024-11-25 eCollection Date: 2024-11-01 DOI:10.1183/23120541.00035-2024

Masashi Shiraishi, Yuji Higashimoto, Ryuji Sugiya, Hiroki Mizusawa, Yu Takeda, Masaya Noguchi, Osamu Nishiyama, Ryo Yamazaki, Shintarou Kudo, Tamotsu Kimura, Hisako Matsumoto

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引用次数: 0

Abstract

Objective: Inspiratory muscle training (IMT) is used to improve inspiratory muscle strength in patients with COPD. However, the effect of IMT on diaphragmatic function has not yet been thoroughly evaluated. This study aimed to evaluate the effect of IMT on maximum diaphragmatic excursion (DE_max) using ultrasonography in patients with COPD.

Methods: This was a single-centre, randomised, prospective, parallel-group, unblinded controlled trial involving 38 participants with stable COPD. Participants underwent a standardised 12-week pulmonary rehabilitation (PR) programme followed by a 12-week IMT programme, consisting of home-based IMT and low-frequency outpatient PR sessions supervised by physiotherapists (once every 2 weeks), versus low-frequency outpatient PR alone as a control. The DE_max and exercise tolerance were measured.

Results: Out of the 38 patients initially enrolled in the PR programme, 33 successfully completed it and were subsequently randomised to the IMT programme. Finally, 15 (94%) and 14 (88%) patients from the IMT and control groups, respectively, completed the study. Following the IMT programme, DE_max increased in the IMT group (mean±sd 50.1±7.6 mm to 60.6±8.0 mm, p<0.001), but not in the control group (47.4±7.9 mm to 46.9±8.3 mm, p=0.10). Changes in DE_max and exercise tolerance (peak oxygen uptake) were greater in the IMT group than in the control group (both p<0.01).

Conclusions: IMT following the PR programme improved DE_max and exercise tolerance. Therefore, DE_max may be an important outcome of IMT.

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来源期刊

ERJ Open Research Medicine-Pulmonary and Respiratory Medicine

CiteScore

6.20

自引率

4.30%

发文量

273

审稿时长

8 weeks

期刊介绍： ERJ Open Research is a fully open access original research journal, published online by the European Respiratory Society. The journal aims to publish high-quality work in all fields of respiratory science and medicine, covering basic science, clinical translational science and clinical medicine. The journal was created to help fulfil the ERS objective to disseminate scientific and educational material to its members and to the medical community, but also to provide researchers with an affordable open access specialty journal in which to publish their work.