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12-Week Inspiratory Muscle Training Improves Respiratory Muscle Strength in Adult Patients with Stable Asthma: A Randomized Controlled Trial

Author

Listed:
  • Yi Chung

    (College of Human Development and Health, National Taipei University of Nursing and Health Sciences, Taipei 112, Taiwan)

  • Ting-Yu Huang

    (Department of Exercise and Health Science, National Taipei University of Nursing and Health Sciences, Taipei 112, Taiwan)

  • Yi-Hung Liao

    (Department of Exercise and Health Science, National Taipei University of Nursing and Health Sciences, Taipei 112, Taiwan)

  • Yu-Chi Kuo

    (College of Human Development and Health, National Taipei University of Nursing and Health Sciences, Taipei 112, Taiwan
    Department of Exercise and Health Science, National Taipei University of Nursing and Health Sciences, Taipei 112, Taiwan)

Abstract

This study aims to investigate and compare the effects of conventional breathing exercises and an inspiratory muscle training intervention on clinical symptoms in asthma patients. Sixty asthma patients (40–65 years old) were randomly assigned to either the conventional breathing exercises (BTE) or inspiratory muscle training (IMT) group for a 12-week intervention period. Outcome measurements were performed before and after the intervention, including the spirometry data, maximal inspiratory and expiratory pressures (PImax and PEmax), asthma control test, asthma control questionnaire, six-minute walk test, and three-day physical activity log, were recorded. PImax expressed as % of predicted value controlled for age and gender in healthy subjects (% predicted) increased by 16.92% (82.45% to 99.38%, p < 0.05) in the BTE group and by 29.84% (71.19% to 101.03%, p < 0.05) in the IMT group. Except for forced vital capacity, which was reduced in the BTE group, all other measured variables improved in both groups, and no statistically significant between-group differences were found. IMT appears to be more effective than breathing exercise intervention in promoting improvements in respiratory muscle strength. IMT may act as an alternative to conventional breathing exercises for middle-aged and elderly asthma patients.

Suggested Citation

  • Yi Chung & Ting-Yu Huang & Yi-Hung Liao & Yu-Chi Kuo, 2021. "12-Week Inspiratory Muscle Training Improves Respiratory Muscle Strength in Adult Patients with Stable Asthma: A Randomized Controlled Trial," IJERPH, MDPI, vol. 18(6), pages 1-15, March.
    • Handle: RePEc:gam:jijerp:v:18:y:2021:i:6:p:3267-:d:521732
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    References listed on IDEAS

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    1. Kenneth F Schulz & Douglas G Altman & David Moher & for the CONSORT Group, 2010. "CONSORT 2010 Statement: Updated Guidelines for Reporting Parallel Group Randomised Trials," PLOS Medicine, Public Library of Science, vol. 7(3), pages 1-7, March.
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    Cited by:

    1. Rita Ribeiro & Henrique Oliveira & Margarida Goes & Cátia Gonçalves & Ana Dias & César Fonseca, 2023. "The Effectiveness of Nursing Rehabilitation Interventions on Self-Care for Older Adults with Respiratory Disorders: A Systematic Review with Meta-Analysis," IJERPH, MDPI, vol. 20(14), pages 1-20, July.

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