| Influence of peripheral arterial disease and supervised walking on heart rate variability. | |
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MedLine Citation:
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PMID: 21784603 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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OBJECTIVE: To examine the influence of peripheral arterial disease (PAD) on heart rate variability (HRV) in patients, and to examine the influence of an intense long-term (12 months) exercise program on HRV in PAD patients. METHODS: This study involved ambulatory patients attending a local hospital and university center. Participants were twenty-five patients with diagnosed PAD and intermittent claudication and 24 healthy, age-matched adults. Interventions involved random allocation of PAD patients to 12 months of conservative medical treatment (Conservative) or medical treatment with supervised treadmill walking (Exercise). The main outcome measures were time- and frequency-domain, nonlinear HRV measures during supine rest, and maximal walking capacity prior to and following the intervention. RESULTS: Despite significantly worse walking capacity (285 ± 190 m vs 941 ± 336 m; P < .05), PAD patients exhibited similar resting HRV to healthy adults. At the 12-month follow-up, Exercise patients exhibited a significantly greater improvement in walking capacity (183% ± 185% vs 57% ± 135%; P = .03) with similar small nonsignificant changes in HRV compared with Conservative patients. CONCLUSIONS: The current study demonstrated that PAD patients exhibited similar resting HRV to healthy adults with 12 months of intense supervised walking producing similar HRV changes to that of conservative medical treatment. The greater walking capacity of healthy adults and PAD patients following supervised exercise does not appear to be associated with enhanced HRV. |
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Authors:
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Anthony S Leicht; Robert G Crowther; Jonathan Golledge |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-7-22 |
Journal Detail:
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Title: Journal of vascular surgery : official publication, the Society for Vascular Surgery [and] International Society for Cardiovascular Surgery, North American Chapter Volume: - ISSN: 1097-6809 ISO Abbreviation: - Publication Date: 2011 Jul |
Date Detail:
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Created Date: 2011-7-25 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8407742 Medline TA: J Vasc Surg Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011 Society for Vascular Surgery. Published by Mosby, Inc. All rights reserved. |
Affiliation:
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Institute of Sport and Exercise Science, James Cook University, Townsville, Queensland, Australia. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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