Abstract
Background: The oxygen uptake efficiency slope (DUES) is a new exercise parameter that provides prognostic power in patients with CHF. Little is known about the effects of exercise training (ET) on OUES.
Aim: To describe the response of OUES to 6 months of ET in CHF patients and compare its evolution to that of other exercise variables.
Methods: 35 patients with CHF (NYHA II-III, age 54 +/- 9y, LVEF 31 +/- 10%) performed 3 maximal exercise tests, i.e. at the start, middle and end of a 6 month ET program. OUES, PeakVO(2), ventilatory anaerobic threshold (VAT) and slope VENCO2 were determined.
Results: DUES, peakVO(2), VAT, slope VENCO2, peak Watt, 6MWT and NYHA-class improved during the first part of the ET period (p
Discussion: OUES improves significantly after 6 months of ET. Changes in peakVO(2) correlate best with changes in OUES. OUES is sensitive to ET and can be used to evaluate the progression of exercise capacity in CHF patients. (C) 2007 European Society of Cardiology. Published by Elsevier B.V All rights reserved.
Aim: To describe the response of OUES to 6 months of ET in CHF patients and compare its evolution to that of other exercise variables.
Methods: 35 patients with CHF (NYHA II-III, age 54 +/- 9y, LVEF 31 +/- 10%) performed 3 maximal exercise tests, i.e. at the start, middle and end of a 6 month ET program. OUES, PeakVO(2), ventilatory anaerobic threshold (VAT) and slope VENCO2 were determined.
Results: DUES, peakVO(2), VAT, slope VENCO2, peak Watt, 6MWT and NYHA-class improved during the first part of the ET period (p
Discussion: OUES improves significantly after 6 months of ET. Changes in peakVO(2) correlate best with changes in OUES. OUES is sensitive to ET and can be used to evaluate the progression of exercise capacity in CHF patients. (C) 2007 European Society of Cardiology. Published by Elsevier B.V All rights reserved.
| Original language | English |
|---|---|
| Pages (from-to) | 625-629 |
| Number of pages | 5 |
| Journal | European Journal of Heart Failure |
| Volume | 9 |
| Issue number | 6-7 |
| Publication status | Published - Jul 2007 |
Keywords
- exercise training
- heart failure
- ventilation