PMID- 18391638 OWN - NLM STAT- MEDLINE DCOM- 20080717 LR - 20080408 IS - 1741-8267 (Print) IS - 1741-8267 (Linking) VI - 15 IP - 2 DP - 2008 Apr TI - Exercise training increases oxygen uptake efficiency slope in chronic heart failure. PG - 140-4 LID - 10.1097/HJR.0b013e3282ef19986 [doi] AB - BACKGROUND AND AIM: The oxygen uptake efficiency slope (OUES) is a novel measure of cardiopulmonary reserve. OUES is measured during an exercise test, but it is independent of the maximally achieved exercise intensity. It has a higher prognostic value in chronic heart failure (CHF) than other exercise test-derived variables such as(Equation is included in full-text article.)or(Equation is included in full-text article.)slope. Exercise training improves(Equation is included in full-text article.)and(Equation is included in full-text article.)in CHF patients. We hypothesized that exercise training also improves OUES. METHODS AND RESULTS: We studied 34 New York Heart Association (NYHA) class II-III CHF patients who constituted an exercise training group T (N=20; 19 men/1 woman; age 60+/-9 years; left ventricular ejection fraction 34+/-5%) and a control group C (N=14; 13 men/one woman; age 63+/-10 years; left ventricular ejection fraction 34+/-7%). A symptom-limited exercise test was performed at baseline and repeated after 4 weeks (C) or after completion of the training program (T). Exercise training increased NYHA class from 2.6 to 2.0 (P<0.05),(Equation is included in full-text article.)by 14% [P(TvsC)<0.01], and OUES by 19% [P(TvsC)<0.01]. Exercise training decreased(Equation is included in full-text article.)by 14% [P(TvsC)<0.05]. CONCLUSION: Exercise training improved NYHA class,(Equation is included in full-text article.)and also OUES. This finding is of great potential interest as OUES is insensitive for peak load. Follow-up studies are needed to demonstrate whether OUES improvements induced by exercise training are associated with improved prognosis. FAU - Gademan, Maaike G J AU - Gademan MG AD - Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands. FAU - Swenne, Cees A AU - Swenne CA FAU - Verwey, Harriette F AU - Verwey HF FAU - van de Vooren, Hedde AU - van de Vooren H FAU - Haest, Joris C W AU - Haest JC FAU - van Exel, Henk J AU - van Exel HJ FAU - Lucas, Caroline M H B AU - Lucas CM FAU - Cleuren, Ger V J AU - Cleuren GV FAU - Schalij, Martin J AU - Schalij MJ FAU - van der Wall, Ernst E AU - van der Wall EE LA - eng GR - HL078797-01A1/HL/NHLBI NIH HHS/United States GR - British Heart Foundation/United Kingdom PT - Controlled Clinical Trial PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - England TA - Eur J Cardiovasc Prev Rehabil JT - European journal of cardiovascular prevention and rehabilitation : official journal of the European Society of Cardiology, Working Groups on Epidemiology & Prevention and Cardiac Rehabilitation and Exercise Physiology JID - 101192000 SB - IM MH - Aged MH - Chronic Disease MH - Exercise Test MH - *Exercise Therapy MH - Female MH - Heart Failure/metabolism/physiopathology/*rehabilitation MH - Humans MH - Male MH - Middle Aged MH - *Oxygen Consumption MH - Pulmonary Ventilation MH - Severity of Illness Index MH - Stroke Volume MH - Treatment Outcome MH - Ventricular Function, Left EDAT- 2008/04/09 09:00 MHDA- 2008/07/18 09:00 CRDT- 2008/04/09 09:00 PHST- 2008/04/09 09:00 [pubmed] PHST- 2008/07/18 09:00 [medline] PHST- 2008/04/09 09:00 [entrez] AID - 00149831-200804000-00004 [pii] AID - 10.1097/HJR.0b013e3282ef19986 [doi] PST - ppublish SO - Eur J Cardiovasc Prev Rehabil. 2008 Apr;15(2):140-4. doi: 10.1097/HJR.0b013e3282ef19986.