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International Journal of Hypertension
Volume 2012, Article ID 846819, 9 pages
http://dx.doi.org/10.1155/2012/846819
Research Article

The Relationship between Multiple Health Behaviours and Brachial Artery Reactivity

1Montreal Behavioural Medicine Centre, Montréal, Québec, Canada
2Research Centre, Montreal Heart Institute, A University of Montreal Teaching Hospital, Montréal, Québec, Canada H1T 1C8
3Department of Psychology, McGill University, Montréal, Québec, Canada H3B 1B1
4Research Centre, Sacré-Cœur Hospital of Montreal, A University of Montreal Teaching Hospital, Montréal, Québec, Canada H4J 1C5
5Department of Psychology, University of Québec at Montréal (UQAM), Montréal, Québec, Canada H3C 3P8
6Department of Psychology, University of Calgary, Calgary, Alberta, Canada T2N 1N4
7Department of Exercise Science, Concordia University, 7141 Sherbrooke Street West, SP165.35, Montréal, Québec, Canada H4B 1R6

Received 20 March 2011; Accepted 29 November 2011

Academic Editor: Douglas Carroll

Copyright © 2012 Jennifer L. Gordon et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Background. The effects of smoking, alcohol consumption, obesity, and a sedentary lifestyle on endothelial function (EF) have only been examined separately. The relative contributions of these behaviours on EF have therefore not been compared. Purpose. To compare the relative associations between these four risk factors and brachial artery reactivity in the same sample. Methods. 328 patients referred for single-photon emission computed tomography (SPECT) exercise stress tests completed a nuclear-medicine-based forearm hyperaemic reactivity test. Self-reported exercise behaviour, smoking habits, and alcohol consumption were collected and waist circumference was measured. Results. Adjusting for relevant covariates, logistic regression analyses revealed that waist circumference, abstinence from alcohol, and past smoking significantly predicted poor brachial artery reactivity while physical activity did not. Only waist circumference predicted continuous variations in EF. Conclusions. Central adiposity, alcohol consumption, and smoking habits but not physical activity are each independent predictors of poor brachial artery reactivity in patients with or at high risk for cardiovascular disease.