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Exercise-induced desaturation in subjects with non-cystic fibrosis bronchiectasis: laboratory-based tests versus field-based exercise tests
OBJECTIVE: To investigate the validity of field walking tests to identify exercise-induced hypoxemia and to compare cardiorespiratory responses and perceived effort between laboratory-based and field-based exercise tests in subjects with bronchiectasis. METHODS: This was a cross-sectional study invo...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Sociedade Brasileira de Pneumologia e Tisiologia
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8332849/ https://www.ncbi.nlm.nih.gov/pubmed/33656157 http://dx.doi.org/10.36416/1806-3756/e20200134 |
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author | de Oliveira, Cristiane Helga Yamane José, Anderson de Camargo, Anderson Alves Feltrim, Maria Ignez Zanetti Athanazio, Rodrigo Abensur Rached, Samia Zahi Stelmalch, Rafael Corso, Simone Dal |
author_facet | de Oliveira, Cristiane Helga Yamane José, Anderson de Camargo, Anderson Alves Feltrim, Maria Ignez Zanetti Athanazio, Rodrigo Abensur Rached, Samia Zahi Stelmalch, Rafael Corso, Simone Dal |
author_sort | de Oliveira, Cristiane Helga Yamane |
collection | PubMed |
description | OBJECTIVE: To investigate the validity of field walking tests to identify exercise-induced hypoxemia and to compare cardiorespiratory responses and perceived effort between laboratory-based and field-based exercise tests in subjects with bronchiectasis. METHODS: This was a cross-sectional study involving 72 non-oxygen-dependent participants (28 men; mean age = 48.3 ± 14.5 years; and mean FEV(1) = 54.1 ± 23.4% of the predicted value). The participants underwent cardiopulmonary exercise testing (CPET) on a treadmill and constant work-rate exercise testing (CWRET) on the same day (1 h apart). In another visit, they underwent incremental shuttle walk testing (ISWT) and endurance shuttle walk testing (ESWT; 1 h apart). Desaturation was defined as a reduction in SpO(2) ≥ 4% from rest to peak exercise. RESULTS: CPET results were compared with ISWT results, as were CWRET results with ESWT results. There was no difference in the magnitude of desaturation between CPET and ISWT (−7.7 ± 6.3% vs. −6.6 ± 5.6%; p = 0.10) and between CWRET and ESWT (−6.8 ± 5.8% vs. −7.2 ± 6.3%; p = 0.50). The incremental tests showed an agreement in the magnitude of desaturation in the desaturation and no desaturation groups (42 and 14 participants, respectively; p < 0.01), as did the endurance tests (39 and 16 participants; p < 0.01). The magnitude of desaturation was similar among the participants who did or did not reach at least 85% of the maximum predicted HR. CONCLUSIONS: Field exercise tests showed good precision to detect desaturation. Field tests might be an alternative to laboratory tests when the clinical question is to investigate exercise-induced desaturation in subjects with bronchiectasis. |
format | Online Article Text |
id | pubmed-8332849 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Sociedade Brasileira de Pneumologia e Tisiologia |
record_format | MEDLINE/PubMed |
spelling | pubmed-83328492021-08-08 Exercise-induced desaturation in subjects with non-cystic fibrosis bronchiectasis: laboratory-based tests versus field-based exercise tests de Oliveira, Cristiane Helga Yamane José, Anderson de Camargo, Anderson Alves Feltrim, Maria Ignez Zanetti Athanazio, Rodrigo Abensur Rached, Samia Zahi Stelmalch, Rafael Corso, Simone Dal J Bras Pneumol Original Article OBJECTIVE: To investigate the validity of field walking tests to identify exercise-induced hypoxemia and to compare cardiorespiratory responses and perceived effort between laboratory-based and field-based exercise tests in subjects with bronchiectasis. METHODS: This was a cross-sectional study involving 72 non-oxygen-dependent participants (28 men; mean age = 48.3 ± 14.5 years; and mean FEV(1) = 54.1 ± 23.4% of the predicted value). The participants underwent cardiopulmonary exercise testing (CPET) on a treadmill and constant work-rate exercise testing (CWRET) on the same day (1 h apart). In another visit, they underwent incremental shuttle walk testing (ISWT) and endurance shuttle walk testing (ESWT; 1 h apart). Desaturation was defined as a reduction in SpO(2) ≥ 4% from rest to peak exercise. RESULTS: CPET results were compared with ISWT results, as were CWRET results with ESWT results. There was no difference in the magnitude of desaturation between CPET and ISWT (−7.7 ± 6.3% vs. −6.6 ± 5.6%; p = 0.10) and between CWRET and ESWT (−6.8 ± 5.8% vs. −7.2 ± 6.3%; p = 0.50). The incremental tests showed an agreement in the magnitude of desaturation in the desaturation and no desaturation groups (42 and 14 participants, respectively; p < 0.01), as did the endurance tests (39 and 16 participants; p < 0.01). The magnitude of desaturation was similar among the participants who did or did not reach at least 85% of the maximum predicted HR. CONCLUSIONS: Field exercise tests showed good precision to detect desaturation. Field tests might be an alternative to laboratory tests when the clinical question is to investigate exercise-induced desaturation in subjects with bronchiectasis. Sociedade Brasileira de Pneumologia e Tisiologia 2021 /pmc/articles/PMC8332849/ /pubmed/33656157 http://dx.doi.org/10.36416/1806-3756/e20200134 Text en © 2021 Sociedade Brasileira de Pneumologia e Tisiologia https://creativecommons.org/licenses/by-nc/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License |
spellingShingle | Original Article de Oliveira, Cristiane Helga Yamane José, Anderson de Camargo, Anderson Alves Feltrim, Maria Ignez Zanetti Athanazio, Rodrigo Abensur Rached, Samia Zahi Stelmalch, Rafael Corso, Simone Dal Exercise-induced desaturation in subjects with non-cystic fibrosis bronchiectasis: laboratory-based tests versus field-based exercise tests |
title | Exercise-induced desaturation in subjects with non-cystic fibrosis bronchiectasis: laboratory-based tests versus field-based exercise tests |
title_full | Exercise-induced desaturation in subjects with non-cystic fibrosis bronchiectasis: laboratory-based tests versus field-based exercise tests |
title_fullStr | Exercise-induced desaturation in subjects with non-cystic fibrosis bronchiectasis: laboratory-based tests versus field-based exercise tests |
title_full_unstemmed | Exercise-induced desaturation in subjects with non-cystic fibrosis bronchiectasis: laboratory-based tests versus field-based exercise tests |
title_short | Exercise-induced desaturation in subjects with non-cystic fibrosis bronchiectasis: laboratory-based tests versus field-based exercise tests |
title_sort | exercise-induced desaturation in subjects with non-cystic fibrosis bronchiectasis: laboratory-based tests versus field-based exercise tests |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8332849/ https://www.ncbi.nlm.nih.gov/pubmed/33656157 http://dx.doi.org/10.36416/1806-3756/e20200134 |
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