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Rigshospitalet - en del af Københavns Universitetshospital
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Inspiratory Muscle Training Enhances Recovery Post COVID-19: A Randomised Controlled Trial

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

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  • Melitta A McNarry
  • Ronan M G Berg
  • James Shelley
  • Joanne Hudson
  • Zoe L Saynor
  • Jamie Duckers
  • Keir Lewis
  • Gwyneth A Davies
  • Kelly A Mackintosh
Vis graf over relationer

BACKGROUND: Many people recovering from coronavirus disease 2019 (COVID-19) experience prolonged symptoms, particularly breathlessness. We urgently need to identify safe and effective COVID-19 rehabilitative strategies. The aim of the current study was to investigate the potential rehabilitative role of inspiratory muscle training (IMT).

METHODS: 281 adults (age 46.6±12.2 years; 88% female) recovering from self-reported COVID-19 (9.0±4.2 months post-acute infection) were randomised 4:1 to an 8-week IMT or a "usual care" waitlist control arm. Health-related quality-of-life and breathlessness questionnaires (King's Brief Interstitial Lung Disease (K-BILD) and Transition Dyspnoea Index (TDI)), respiratory muscle strength, and fitness (Chester Step Test) were assessed pre- and post-intervention. The primary end-point was K-BILD total score, with the K-BILD domains and TDI being key secondary outcomes.

RESULTS: According to intention to treat, there was no difference between groups in K-BILD total score post-intervention (control: 59.5±12.4; IMT: 58.2±12.3; p<0.05) but IMT elicited clinically meaningful improvements in the K-BILD domains for breathlessness (control: 59.8±12.6; IMT: 62.2±16.2; p<0.05) and chest symptoms (control: 59.2±18.7; IMT: 64.5±18.2; p<0.05), along with clinically meaningful improvements in breathlessness according to TDI (control: 0.9±1.7 versus 2.0±2.0; p<0.05). IMT also improved respiratory muscle strength and estimated aerobic fitness.

CONCLUSIONS: IMT may represent an important home-based rehabilitation strategy for wider implementation as part of COVID-19 rehabilitative strategies. Given the diverse nature of long COVID, further research is warranted on the individual responses to rehabilitation; the withdrawal rate herein highlights that no one strategy is likely to be appropriate for all.

OriginalsprogEngelsk
Artikelnummer 2103101
TidsskriftThe European respiratory journal
Vol/bind60
Udgave nummer4
Antal sider10
ISSN0903-1936
DOI
StatusUdgivet - okt. 2022

Bibliografisk note

Copyright ©The authors 2022.

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