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. 2008 Feb;9(2):96-100.
doi: 10.1111/j.1468-1293.2007.00524.x. Epub 2007 Dec 18.

Post-exercise heart rate recovery in HIV-positive individuals on highly active antiretroviral therapy. Early indicator of cardiovascular disease?

W T Cade  1 , D N Reeds, S Lassa-Claxton, V G Davila-Roman, A D Waggoner, W G Powderly, K E Yarasheski
Affiliations

Post-exercise heart rate recovery in HIV-positive individuals on highly active antiretroviral therapy. Early indicator of cardiovascular disease?

W T Cade et al. HIV Med. 2008 Feb.

Abstract

Background: HIV infection and its treatment, specifically protease inhibitor (PI) therapy, have been associated with an increased risk for cardiovascular disease. Heart rate recovery (HRR) following peak exercise is predictive of future cardiovascular events and mortality in the general population. Nothing is known regarding HRR in individuals infected with HIV on highly active antiretroviral therapy (HAART).

Subjects and methods: HIV-positive subjects on HAART that included a PI (HIV+PI, n=19), HIV-positive subjects on HAART that did not include a PI (HIV+noPI, n=19) and HIV-seronegative age, gender and body mass index (BMI) matched controls (Cntl, n=15) underwent a graded maximal exercise test on a cycle ergometer to volitional exhaustion. A continuous electrocardiogram was recorded and HRR was monitored every 30 s for 2 min post exercise.

Results: HRR at 1.5 and 2 min was significantly delayed in HIV-positive subjects both on and not on PI-based HAART compared with controls (P<0.01).

Conclusion: HRR is impaired in HIV-positive individuals on HAART, whether or not the HAART includes a PI, compared with age, gender, BMI, and activity level matched HIV-seronegative controls. Abnormal HRR may reflect cardio-autonomic dysfunction and may be an independent risk factor for future cardiac events in HIV-positive individuals that receive HAART.

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Figures

Fig. 1
Fig. 1
Heart rate recovery following peak exercise. Beats per minute; HIV + protease inhibitor (PI), HIV-positive subjects on highly active antiretroviral therapy (HAART) that included a PI; HIV + noPI, HIV-positive subjects on HAART that did not include a PI.
See this image and copyright information in PMC

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