The repeatability of submaximal endurance exercise testing in cystic fibrosis
Submaximal endurance cycle ergometer exercise tests are used to measure the efficacy of an exercise intervention, but the repeatability of these tests in patients with cystic fibrosis (CF) has not been established. The purpose of this study was to examine the repeatability of submaximal endurance te...
Saved in:
Published in | Pediatric pulmonology Vol. 42; no. 1; pp. 75 - 82 |
---|---|
Main Authors | , |
Format | Journal Article |
Language | English |
Published |
Hoboken
Wiley Subscription Services, Inc., A Wiley Company
01.01.2007
Wiley-Liss |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | Submaximal endurance cycle ergometer exercise tests are used to measure the efficacy of an exercise intervention, but the repeatability of these tests in patients with cystic fibrosis (CF) has not been established. The purpose of this study was to examine the repeatability of submaximal endurance testing in stable CF. Fifteen adults with CF underwent two submaximal endurance tests carried out over a 7‐day period. A subset of six subjects returned 28 days later for a third submaximal endurance test. Workload was set at 80% of maximum workload and exercise was performed to exhaustion. Oxygen consumption, minute ventilation, tidal volume, carbon dioxide output, respiratory rate, heart rate, and oxygen saturation were measured at rest, at end exercise and at four matched times during the submaximal endurance tests (20, 40, 60, and 80% of exercise duration calculated from the first endurance test). Submaximal endurance test time was highly repeatable with no significant learning effect identified on multiple testing. Submaximal endurance exercise time demonstrated a variability of 5.7% which is consistent with high levels of repeatability. Metabolic, ventilatory and cardiac variables were all also highly reproducible between test days. Submaximal endurance testing is repeatable in stable CF, confirming that submaximal endurance tests are a reliable tool for assessment of therapeutic benefit in patients with CF. Pediatr Pulmonol. 2007; 42:75–82. © 2006 Wiley‐Liss, Inc. |
---|---|
Bibliography: | ark:/67375/WNG-CXGRMR8G-X ArticleID:PPUL20547 This work was performed at Department of Respiratory Medicine, St. Vincent's University Hospital, Elm Park, Dublin 4, Ireland. National Rehabilitation Board istex:7618F7FE4060EBDBA613B8920B65A594FBEC06BD Health Research Board Cystic Fibrosis Research Trust ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 8755-6863 1099-0496 |
DOI: | 10.1002/ppul.20547 |