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the claim

Inspiratory and expiratory muscle training improves respiratory function

the verdict
SUPPORTED
the evidence backs this
Recorded sources
9 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that Inspiratory and expiratory muscle training improves respiratory function?

Yes. Multiple clinical trials and meta-analyses consistently demonstrate that inspiratory and expiratory muscle training enhances respiratory muscle strength and pulmonary function across various populations.

Verdict: SUPPORTED · 9 sources for, 0 against · Last checked

The analysis

The provided literature consists of multiple randomized controlled trials, systematic reviews, and meta-analyses showing that inspiratory and expiratory muscle training consistently improves respiratory muscle strength, lung function parameters (such as FEV1 and FVC), and related physiological outcomes in diverse populations, including asthma, stroke, burns, and surgical patients. There are no papers contradicting the claim.

Evidence for · 9
Effects of Inspiratory Muscle Training and High-Intensity Interval Training on Lung Function and Respiratory Muscle Function in Asthma
2022
Meta-analysis of RCTs shows inspiratory muscle training significantly improves pulmonary function and inspiratory muscle strength in asthma patients.
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Wang, Q., Yang, F., Gao, L., & Gao, W. (2022). Effects of Inspiratory Muscle Training and High-Intensity Interval Training on Lung Function and Respiratory Muscle Function in Asthma. doi.org. https://doi.org/10.4187/respcare.09813

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More for · 8
Inspiratory muscle training impact on respiratory muscle strength, pulmonary function, and quality of life in children with chest burn: A randomized controlled trial.
2024
Randomized controlled trial demonstrates that inspiratory muscle training improves respiratory muscle strength and lung functions in children recovering from chest burns.
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Basha, M., Azab, A., Elnaggar, R., Aboelnour, N., Kamel, N. M., Aloraini, S. M., & Kamel, F. H. (2024). Inspiratory muscle training impact on respiratory muscle strength, pulmonary function, and quality of life in children with chest burn: A randomized controlled trial.. doi.org. https://doi.org/10.1016/j.burns.2024.05.007

Effect of inspiratory and expiratory muscle training on respiratory function and decannulation outcome in patients with tracheostomy after stroke: a randomized controlled trial
2024
Randomized controlled trial shows inspiratory and expiratory muscle training improves respiratory function and clinical outcomes in patients with tracheostomy after stroke.
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Li, L., Liu, R., Yu, Z., He, J., & Wei, Q. (2024). Effect of inspiratory and expiratory muscle training on respiratory function and decannulation outcome in patients with tracheostomy after stroke: a randomized controlled trial. doi.org. https://doi.org/10.1080/10749357.2024.2437328

Effects of inspiratory muscle training on pulmonary function, trunk stability, and balance in stroke patients: a stratified randomized controlled trial
2025
Randomized controlled trial finds inspiratory muscle training leads to significant improvements in maximal inspiratory pressure and respiratory function in stroke patients.
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Lee, D. & Jeon, H. (2025). Effects of inspiratory muscle training on pulmonary function, trunk stability, and balance in stroke patients: a stratified randomized controlled trial. doi.org. https://doi.org/10.12965/jer.2550256.128

Effects of simultaneous aerobic and inspiratory muscle training on diaphragm function, respiratory muscle strength, endurance, and fatigue index: randomized-controlled trial
2025
Randomized controlled trial indicates walking-specific inspiratory muscle training enhances diaphragm function, respiratory muscle strength, and endurance.
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Çelik, Z., Güzel, N., Allahverdiyeva, S., Şendur, H. N., & Cerit, M. (2025). Effects of simultaneous aerobic and inspiratory muscle training on diaphragm function, respiratory muscle strength, endurance, and fatigue index: randomized-controlled trial. doi.org. https://doi.org/10.1007/s00421-025-05868-1

The Effectiveness of Perioperative Respiratory Muscle Exercise in Elderly Cardiac Surgery Patients: A Randomized Controlled Trial.
2026
Randomized controlled trial shows perioperative respiratory muscle training improves respiratory muscle strength, pulmonary function, and functional capacity in elderly cardiac surgery patients.
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Q, W., J, S., Y, P., S, L., L, C., & Y, L. (2026). The Effectiveness of Perioperative Respiratory Muscle Exercise in Elderly Cardiac Surgery Patients: A Randomized Controlled Trial.. doi.org. https://doi.org/10.1016/j.apmr.2026.06.023

Effects of respiratory muscle training on respiratory function in patients with amyotrophic lateral sclerosis: a systematic review and meta-analysis.
2026
Systematic review and meta-analysis concludes that respiratory muscle training improves pressure- and flow-based respiratory outcomes in patients with amyotrophic lateral sclerosis.
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Y, L., J, H., M, L., Y, Z., Z, Y., X, H., Z, T., & J, W. (2026). Effects of respiratory muscle training on respiratory function in patients with amyotrophic lateral sclerosis: a systematic review and meta-analysis.. doi.org. https://doi.org/10.1007/s00415-026-13982-z

Is it time to focus on expiratory muscle training in children with asthma? A randomized controlled trial.
2026
Randomized controlled trial demonstrates that expiratory muscle training combined with chest physiotherapy improves pulmonary function and respiratory muscle strength in children with asthma.
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M, K., H, U., B, G. K., A, K., & H, D. K. (2026). Is it time to focus on expiratory muscle training in children with asthma? A randomized controlled trial.. doi.org. https://doi.org/10.1007/s00431-026-07114-y

Effects of four weeks of inspiratory muscle training with different resistance modalities on pulmonary function and specialized athletic ability in synchronized swimmers: a randomised trial.
2026
Randomized trial shows that resistance inspiratory muscle training improves inspiratory function and pulmonary function in synchronized swimmers.
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H, X. & Y, F. (2026). Effects of four weeks of inspiratory muscle training with different resistance modalities on pulmonary function and specialized athletic ability in synchronized swimmers: a randomised trial.. doi.org. https://doi.org/10.1038/s41598-026-43018-5

What does the evidence say?

The provided literature consists of multiple randomized controlled trials, systematic reviews, and meta-analyses showing that inspiratory and expiratory muscle training consistently improves respiratory muscle strength, lung function parameters (such as FEV1 and FVC), and related physiological outcomes in diverse populations, including asthma, stroke, burns, and surgical patients. There are no papers contradicting the claim.

Receipt History
first checked04 Aug 2026
judged → SUPPORTED · 8204 Aug 2026
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