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Brachial Artery Endothelial Responses during Early Recovery from an Exercise Bout in Patients with Coronary Artery Disease
Joint Authors
Currie, Katharine D.
McKelvie, Robert S.
MacDonald, Maureen J.
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-03-03
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
This study examined the acute endothelial responses to an exercise bout in coronary artery disease (CAD) patients.
Nineteen males with CAD (63±8 years) were assessed at rest and 15 minutes following a submaximal exercise bout (recovery).
Brachial artery endothelial-dependent function was assessed using flow-mediated dilation (FMD).
Brachial artery diameters and velocities were measured using Duplex ultrasound at baseline, and for 3 minutes following a 5-minute ischemic period.
Endothelial-independent function was assessed using a 0.4 mg dose of nitroglycerin (NTG).
FMD responses were unchanged from rest to recovery; however, there were 2 types of responses: negative and positive FMD responders.
Post-hoc analysis revealed that positive responders had lower resting FMD compared to negative responders (3.2±1.7 versus 6.0±2.5%, P<0.05).
NTG-mediated dilation was reduced in recovery (22.0±5.6 versus 14.4±5.7%, P<0.001 for rest versus recovery).
In conclusion, acute endothelial-dependent responses to submaximal exercise are affected by the degree of resting endothelial dysfunction.
The observation of attenuated NTG-mediated dilation during recovery is novel and warrants the investigation of possible mechanisms and clinical significance.
Furthermore, it highlights the necessity of both endothelial-dependent and endothelial-independent assessments when evaluating endothelial function changes with an intervention.
American Psychological Association (APA)
Currie, Katharine D.& McKelvie, Robert S.& MacDonald, Maureen J.. 2014. Brachial Artery Endothelial Responses during Early Recovery from an Exercise Bout in Patients with Coronary Artery Disease. BioMed Research International،Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-483379
Modern Language Association (MLA)
Currie, Katharine D.…[et al.]. Brachial Artery Endothelial Responses during Early Recovery from an Exercise Bout in Patients with Coronary Artery Disease. BioMed Research International No. 2014 (2014), pp.1-8.
https://search.emarefa.net/detail/BIM-483379
American Medical Association (AMA)
Currie, Katharine D.& McKelvie, Robert S.& MacDonald, Maureen J.. Brachial Artery Endothelial Responses during Early Recovery from an Exercise Bout in Patients with Coronary Artery Disease. BioMed Research International. 2014. Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-483379
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-483379