| Indications and limits of the exercise test in chronic heart failure. | |
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MedLine Citation:
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PMID: 15374149 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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Assessment of exercise capacity has been widely used in the evaluation of chronic heart failure (CHF), both to define the severity of the syndrome and to assess the changes induced by therapy. Various exercise tests and protocols can be used. The simple stress test using the exercise bicycle or the treadmill can give useful indications only in patients with severe or lower functional reductions. Maximum exercise duration usually depends on the patient's and the physician's motivation. The addition of respiratory gas exchange measurements, maximum oxygen consumption (VO(2)) or anaerobic threshold, increases the exactness of the assessment of the exercise limitation in CHF. VO(2) maximum provides an objective marker of aerobic capacity and it is biased by neither the patient nor the physician. This technique, however, requires the patient to exercise to exhaustion, and it is somewhat subjective and not indicative of normal daily exercise routine. The anaerobic threshold is a useful way of evaluating adaptability to submaximal efforts and the impact of the therapy on the daily performance. Nevertheless, it is significantly influenced by the fitness level and it has a reduced prognostic capability compared to VO(2) maximum. Submaximal exercise tests discriminate particularly between patients with severe CHF. The major limits are the influence of the patient's motivation and its limited validation in terms of reproducibility and prediction in controlled surveys. |
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Authors:
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E Feraco; R Gallo; O Grandinetti; A Lauro; A Madeo |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Archives of gerontology and geriatrics Volume: 23 ISSN: 0167-4943 ISO Abbreviation: Arch Gerontol Geriatr Publication Date: 1996 Nov-Dec |
Date Detail:
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Created Date: 2004-09-17 Completed Date: 2005-03-14 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8214379 Medline TA: Arch Gerontol Geriatr Country: Ireland |
Other Details:
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Languages: eng Pagination: 293-8 Citation Subset: - |
Affiliation:
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Department of Cardiology, Italian National Research Centre on Aging, C. da Muoio Piccolo, I-87100 Cosenza, Italy. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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