| High-intensity interval exercise in chronic heart failure: protocol optimization. | |
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MedLine Citation:
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PMID: 22300780 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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BACKGROUND: There are little data on the optimization of high-intensity aerobic interval exercise (HIIE) protocols in patients with chronic heart failure (CHF). Therefore, we compared acute cardiopulmonary responses to 4 different HIIE protocols to identify the optimal one. METHODS AND RESULTS: Twenty men with stable systolic CHF performed 4 different randomly ordered single HIIE sessions with measurement of gas exchange. For all protocols (A, B, C, and D) exercise intensity was set at 100% of peak power output (PPO). Interval duration was 30 seconds (A and B) or 90 seconds (C and D), and recovery was passive (A and C) or active (50% of PPO in B and D). Time spent above 85% of VO(2peak) and time above the ventilatory threshold were similar across all 4 HIIE protocols. Total exercise time was significantly longer in protocols with passive recovery intervals (A: 1,651 ± 347 s; C: 1,574 ± 382 s) compared with protocols with active recovery intervals (B: 986 ± 542 s; D: 961 ± 556 s). All protocols appeared to be safe, with exercise tolerance being superior during protocol A. CONCLUSION: Among the 4 HIIE protocols tested, protocol A with short intervals and passive recovery appeared to be superior. |
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Authors:
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Philippe Meyer; Eve Normandin; Mathieu Gayda; Guillaume Billon; Thibaut Guiraud; Laurent Bosquet; Annick Fortier; Martin Juneau; Michel White; Anil Nigam |
Publication Detail:
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Type: Journal Article Date: 2011-11-25 |
Journal Detail:
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Title: Journal of cardiac failure Volume: 18 ISSN: 1532-8414 ISO Abbreviation: J. Card. Fail. Publication Date: 2012 Feb |
Date Detail:
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Created Date: 2012-02-03 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9442138 Medline TA: J Card Fail Country: United States |
Other Details:
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Languages: eng Pagination: 126-33 Citation Subset: IM |
Copyright Information:
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Copyright © 2012 Elsevier Inc. All rights reserved. |
Affiliation:
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University Hospital of Geneva, Geneva, Switzerland; Cardiovascular Prevention and Rehabilitation Centre (Centre ÉPIC), Université de Montréal, Montréal, Canada. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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