| Effect of aerobic and resistance exercise on central hemodynamic responses in severe chronic heart failure. | |
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MedLine Citation:
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PMID: 12070202 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Exercise is now considered an important component of management in chronic heart failure (CHF), but little is known about central hemodynamic changes that occur during different exercise modalities in these patients. Seventeen patients (ejection fraction 25 +/- 2%) undertook brachial artery and right heart catheterization and oxygen consumption assessment at rest, during submaximal and peak cycling (Cyc), and during submaximal upper and lower limb resistance exercise. Cardiac output (CO) increased relative to baseline during peak Cyc (P < 0.05) but did not change during submaximal Cyc or upper or lower limb exercise. Heart rate (HR) was lowest during upper limb exercise and progressively increased during lower limb exercise, submaximal Cyc, and peak Cyc, with significant differences between each of these (P < 0.01). Conversely, stroke volume (SV) decreased during submaximal Cyc and lower limb exercise and was lower during peak and submaximal Cyc and lower limb exercise than during upper limb exercise (P < 0.05). CHF patients are dependent on increases in HR to increase CO during exercise when SV may decline. Resistance exercise, performed at appropriate intensity, induces a similar hemodynamic burden to aerobic exercise in patients with CHF. |
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Authors:
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Craig Cheetham; Daniel Green; Julie Collis; Lawrence Dembo; Gerard O'Driscoll |
Publication Detail:
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Type: Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of applied physiology (Bethesda, Md. : 1985) Volume: 93 ISSN: 8750-7587 ISO Abbreviation: J. Appl. Physiol. Publication Date: 2002 Jul |
Date Detail:
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Created Date: 2002-06-18 Completed Date: 2002-12-17 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8502536 Medline TA: J Appl Physiol Country: United States |
Other Details:
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Languages: eng Pagination: 175-80 Citation Subset: IM |
Affiliation:
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Department of Human Movement and Exercise Science, The University of Western Australia, Crawley 6009, Australia. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adrenergic beta-Antagonists
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pharmacology Arm / physiology Bicycling Chronic Disease Exercise / physiology* Female Heart Catheterization Heart Failure / drug therapy, physiopathology* Heart Rate / physiology Hemodynamics / drug effects, physiology* Humans Leg / physiology Male Middle Aged Oxygen Consumption / physiology Stroke Volume / physiology Weight Lifting / physiology |
| Chemical | |
Reg. No./Substance:
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0/Adrenergic beta-Antagonists |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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