Reliability of Cardiorespiratory and Metabolic Responses During Incremental Shuttle Walk Test in Adult Subjects With Asthma

Respiratory Care
Ivana Gonçalves LabadessaValéria Amorim P Di Lorenzo

Abstract

The incremental shuttle walk test (ISWT) has been widely used to assess exercise capacity of subjects with COPD. However, to date, no studies have assessed its reliability in the asthmatic population. This study aimed to assess the test-retest reliability of ISWT for the distance walked (ISWD) and cardiorespiratory and metabolic responses in adult subjects with asthma. This was a cross-sectional observational study. Thirty-four subjects of both genders, 18-45 y old, with a diagnosis of controlled asthma, were recruited from March 2012 to December 2015. The subjects performed 3 ISWTs on different days, with a minimum interval of 48 h and a maximum of 1 week between the second and third ISWT. For the reliability analysis, the values of the second and third ISWTs were used, eliminating the influence of any learning effect from the first test. The intraclass correlation coefficients were > 0.75 (P < .001) for ISWD (m), speed (km/h),oxygen uptake (V̇O2 ), ventilatory equivalent carbon dioxide (V̇E/V̇CO2 ), and minute ventilation (V̇E) at the ISWT peak. The Bland-Altman plot presented a mean error close to zero, and measurement distribution was within acceptable limits of variation. The ISWT presented excellent reliability for the IS...Continue Reading

Citations

Oct 22, 2019·Frontiers in Physiology·Daniele SchiweMárcio Vinícius Fagundes Donadio
Jan 13, 2021·Journal of Manipulative and Physiological Therapeutics·Marielle Aguiar NogueiraDaniela Bassi-Dibai
Jul 13, 2021·The Journal of Asthma : Official Journal of the Association for the Care of Asthma·Ivana Gonçalves LabadessaValéria A Pires Di Lorenzo

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