Exercise training attenuates progressive decline in brachial artery reactivity in heart transplant recipients

The Journal of Heart and Lung Transplantation : the Official Publication of the International Society for Heart Transplantation
Randy W BraithGary L Pierce

Abstract

Heart transplantation normalizes central hemodynamics, but endothelial dysfunction persists after transplantation. To investigate the effects of aerobic exercise on arterial function, oxidative stress, lipid profile, and sympathetic nervous system activity, 20 heart transplant recipients (age, 54.3 +/- 9.1 years; 17 men, 3 women) were randomly assigned to 12 weeks of supervised treadmill exercise (Trained; n = 10) or standard medical care (Control; n = 10). Supervised exercise was initiated at 8 weeks after transplant. Brachial artery reactivity was assessed using flow-mediated dilation. The VO2 peak increased 26% in the Trained patients (15.4 +/- 4.3 vs 19.4 +/- 5.5 ml/kg/min; p < or = 0.05) but did not change in the Controls (16.2 +/- 5.2 vs 16.8 +/- 2.8 ml/kg/min; p > or = 0.05). Brachial artery flow-mediated dilation (10.1% +/- 6.1% vs 9.6% +/- 6.2%) and absolute brachial diameter (0.48 +/- 0.22 vs 0.42 +/- 0.24 mm) did not change in Trained patients, but brachial flow-mediated dilation (10.5% +/- 2.8% vs 7.9% +/- 5.1%) and the absolute change in brachial diameter (0.48 +/- 0.16 vs 0.36 +/- 0.24 mm) decreased significantly (p < or = 0.05) in the Control patients. Resting norepinephrine decreased significantly (p < or = 0.05...Continue Reading

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Citations

Jan 26, 2011·The Journal of Cardiovascular Nursing·Abigail S DeanKenneth B Margulies
Jul 21, 2010·The Journal of Heart and Lung Transplantation : the Official Publication of the International Society for Heart Transplantation·Maria Rosa CostanzoUNKNOWN International Society of Heart and Lung Transplantation Guidelines
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Feb 21, 2021·Transplant International : Official Journal of the European Society for Organ Transplantation·Tania Janaudis-FerreiraJill Boruff

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