The objective of this study was to assess the oxygen cost of various intensities of steady-state cycling. VO2 (ml·min -1·kg-1) was measured at rest, during unloaded cycling (UL), 20 Watts, 50% (SS50) & 65% (SS65) of peak watts in 40 COPD patients (64 +/- 9 yrs; FEV1/FVC: 48 +/- 17 % predicted; FEV1:36 +/- 14 % predicted) and 28 age-matched healthy controls (CTRL). Despite higher VE (L·min -1) in COPD vs. CTRL (UL: 20.6 +/- 3.4 vs. 15.4 +/- 4.1; 20W: 24.3 +/- 4.5 vs. 17.8 +/- 4.2), VO2 at rest, at UL and 20W was not higher in COPD compared to CTRL. In addition, comparable slope and intercept coefficients for the VO2 vs. Watt relationship were obtained in COPD and CTRL for submaximal cycling of low to moderate intensity. (Abstract shortened by UMI.)
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.82233 |
| Date | January 2005 |
| Creators | Gravel, Geneviève |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Master of Science (Department of Kinesiology and Physical Education..) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: 002211284, proquestno: AAIMR12444, Theses scanned by UMI/ProQuest. |
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