| Cardiovascular Responses to Walking in Patients with Peripheral Artery Disease. | |
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MedLine Citation:
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PMID: 21502888 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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PURPOSES:: To assess the cardiovascular responses during constant load walking and to identify predictors of this response in peripheral artery disease (PAD) patients. METHODS:: Seventy-nine patients with PAD performed a constant load treadmill test (2 mph, 0% grade). During the test, systolic blood pressure (BP), diastolic BP, and heart rate (HR) were obtained at the fourth minute to the last minute of exercise. Patients were also characterized on demographic measures, cardiovascular risk factors, baseline exercise performance and vascular measures. RESULTS:: During constant load walking, there was a significant increase (p<0.01) in systolic BP (+12 ± 10 mmHg), diastolic BP (+6 ± 9 mmHg), and HR (+5 ± 5 bpm). The HR responses was negatively correlated with ischemic window (r= -0.23; p<0.05), expressed as an area under the curve of the resting ankle systolic BP and its recovery from maximal graded treadmill test, and positively correlated with the HR during the first minute of recovery from maximal graded treadmill test (r= 0.27; p<0.05). The increase in cardiovascular variables during constant load walking was greater in subjects with higher body mass index and in men (p<0.05). CONCLUSION:: Patients with PAD had an increased cardiovascular response during constant load walking, and these responses were greater in obese patients and in men. The clinical implication is that PAD patients engaged in walking training programs, particularly men and those with obesity, require frequent assessment of cardiovascular parameters to avoid exaggerated increases in BP and HR during constant load walking. |
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Authors:
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Raphael Mendes Ritti-Dias; Annelise Lins Meneses; Donald E Parker; Polly S Montgomery; Aman Khurana; Andrew W Gardner |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-4-14 |
Journal Detail:
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Title: Medicine and science in sports and exercise Volume: - ISSN: 1530-0315 ISO Abbreviation: - Publication Date: 2011 Apr |
Date Detail:
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Created Date: 2011-4-19 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8005433 Medline TA: Med Sci Sports Exerc Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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1 School of Physical Education, Pernambuco University, Pernambuco, Brazil.2 Department of Biostatistics and Epidemiology, OUHSC, Oklahoma City, OK. 3 General Clinical Research Center, Oklahoma University Health Sciences Center (OUHSC), Oklahoma City, OK. 4 Cardiovascular Section, Department of Medicine, OUHSC, Oklahoma City, OK. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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