Estimating endurance training intensity prescription from the 6-minute stepper test in people with chronic obstructive pulmonary disease - a multicenter cross-sectional study with external validation.
Tristan Bonnevie, Augustin Clet, Marc Beaumont, Pauline Smondack, Yann Combret, Clément Médrinal, Guillaume Prieur, Fairuz Boujibar, Jean-François Muir, Antoine Cuvelier, Jean-Marie Grosbois, David Debeaumont, Elise Artaud-Macari, Francis-Edouard Gravier
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引用次数: 0
Abstract
Background: Home-based pulmonary rehabilitation (PR) can enhance accessibility to PR, but no at-home field exercise test has been validated for individualized endurance training prescriptions.
Research question: What is the accuracy of the six-minute stepper test (6MST) in estimating endurance training intensity as determined during cardiopulmonary exercise testing (CPET)?
Study design and method: This multicenter (N = 3) cross-sectional study included individuals with COPD. Participants performed CPET and two 6MSTs to evaluate the 6MST's ability to estimate endurance training intensity based on CPET-derived heart rate at the first ventilatory threshold (HRvt1), the corresponding power output (Pvt1), and peak power output (Ppeak). Predictive equations were tested for external validity using data from two prior studies.
Results: 105 patients were included (mean age 61 (SD 9) years; mean FEV1 61 (SD 21) %). Predictive equations moderately predicted HRvt1 (r² = 0.38), strongly predicted Pvt1 (r² = 0.63) and very strongly predicted Ppeak (r² = 0.75). External validity was small to moderate for HRvt1 and Pvt1 but was strong for 60% of Ppeak (mean absolute difference: 10W, 95% CI 5 to 10). Passing and Bablok regression confirmed interchangeability for Pvt1 and 60% of Ppeak.
Interpretation: The 6MST offers a reliable method to set initial training intensity when CPET is unavailable.
PulmonologyMedicine-Pulmonary and Respiratory Medicine
CiteScore
14.30
自引率
5.10%
发文量
159
审稿时长
19 days
期刊介绍:
Pulmonology (previously Revista Portuguesa de Pneumologia) is the official journal of the Portuguese Society of Pulmonology (Sociedade Portuguesa de Pneumologia/SPP). The journal publishes 6 issues per year and focuses on respiratory system diseases in adults and clinical research. It accepts various types of articles including peer-reviewed original articles, review articles, editorials, and opinion articles. The journal is published in English and is freely accessible through its website, as well as Medline and other databases. It is indexed in Science Citation Index Expanded, Journal of Citation Reports, Index Medicus/MEDLINE, Scopus, and EMBASE/Excerpta Medica.