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. 2018 May 15;13:1569–1576. doi: 10.2147/COPD.S160512

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© 2018 Formiga et al. This work is published and licensed by Dove Medical Press Limited

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Bland–Altman plot highlighting test–retest agreement in MIP (A), SMIP (B), and ID (C) values obtained using the TIRE method.

Note: The middle line indicates the mean difference between testing sessions, and the upper and lower lines indicate the 95% confidence limits for these measurements calculated as mean difference±(SD×1.96).

Abbreviations: ID, inspiratory duration; MIP, maximal inspiratory pressure; SMIP, sustained maximal inspiratory pressure; TIRE, Test of Incremental Respiratory Endurance.