Document Detail


An alternative approach for exercise prescription and efficacy testing in patients with chronic heart failure: a randomized controlled training study.
MedLine Citation:
PMID:  15894947     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Prescription of endurance training and documentation of its efficacy in patients with chronic heart failure (CHF) is usually done with reference to maximal ergometric measurements which are subject to form on the day changes and motivational influences. However, the use of submaximal parameters might represent an alternative approach. METHODS: This was tested in 54 patients with CHF (57 +/- 10 years, NYHA II: n = 40; NYHA III: n = 14) who were randomized into training (T; n = 26) or control group (CO; n = 28). Training consisted of 45 minutes cycling at an intensity corresponding to the anaerobic threshold (AT) and was conducted for 12 weeks, 4 to 5 times per week. Cardiorespiratory exercise testing was done before and after the experimental phase. Changes in well-being were investigated using a 5-point Likert scale. RESULTS: A significant rightward shift in the heart rate curve was demonstrated in T compared with CO (P = .01; T: decrease in resting heart rate by 8 per minute, during exercise by 7 to 11/min; CO: -1 and -1 to -3 per minute, respectively). Anaerobic threshold increased significantly by 11.6% in T (+0.11 +/- 0.11 L min(-1) oxygen uptake) compared with CO (-0.02 +/- 0.10 L min(-1)). Positive changes in well-being were significantly larger in T (P < .01). CONCLUSIONS: In patients with CHF, training can be prescribed and its efficacy can be evaluated by the exclusive use of submaximal parameters. Anaerobic threshold represents an appropriate training intensity in this population.
Authors:
Tim Meyer; Günter Görge; Bernhard Schwaab; Katharina Hildebrandt; Jens Walldorf; Christine Schäfer; Ingrid Kindermann; Jürgen Scharhag; Wilfried Kindermann
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Publication Detail:
Type:  Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  American heart journal     Volume:  149     ISSN:  1097-6744     ISO Abbreviation:  Am. Heart J.     Publication Date:  2005 May 
Date Detail:
Created Date:  2005-05-16     Completed Date:  2005-12-21     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  0370465     Medline TA:  Am Heart J     Country:  United States    
Other Details:
Languages:  eng     Pagination:  e1-7     Citation Subset:  AIM; IM    
Affiliation:
Institute of Sports and Preventive Medicine, Faculty of Clinical Medicine, University of Saarland, Saarbrücken, Germany. tim.meyer@mx.uni-saarland.de
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MeSH Terms
Descriptor/Qualifier:
Aged
Anaerobic Threshold*
Catecholamines / blood
Echocardiography
Exercise Test
Exercise Therapy / methods*
Exercise Tolerance
Female
Heart Failure / blood,  therapy*
Humans
Lactic Acid / blood
Male
Middle Aged
Chemical
Reg. No./Substance:
0/Catecholamines; 50-21-5/Lactic Acid

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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