CLINICAL RESEARCH: EXERCISE HYPERTENSION
Exaggerated Blood Pressure Response to Exercise Is Associated With Augmented Rise of Angiotensin II During Exercise
Chi Young Shim, MD,
Jong-Won Ha, MD, PhD*,
Sungha Park, MD, PhD,
Eui-Young Choi, MD,
Donghoon Choi, MD, PhD,
Se-Joong Rim, MD, PhD and
Namsik Chung, MD, PhD
Cardiology Division, Yonsei Cardiovascular Center, Yonsei University College of Medicine, Seoul, South Korea.
Manuscript received January 11, 2008;
revised manuscript received March 10, 2008,
accepted March 10, 2008.
* Reprint requests and correspondence: Dr. Jong-Won Ha, Cardiology Division, Yonsei Cardiovascular Center, Yonsei University College of Medicine, SeodaemunGu 120-752, Seoul, South Korea. (Email: jwha{at}yuhs.ac).
Objectives: The aim of this study was to investigate the association between an exaggerated blood pressure (BP) response to exercise and augmented angiotensin (Ang) II rise during exercise.
Background: Although a central pressor effect of Ang II has been implicated in the pathogenesis of hypertension, the relationship between Ang II and exaggerated BP response to exercise is unclear.
Methods: Thirty-six subjects with an exaggerated BP response to exercise (18 men, age 50 ± 16 years, Group II) were compared with 36 age- and gender-matched control subjects (18 men, age 50 ± 16 years, Group I) with normal BP reactivity. The subjects who had resting BP  140/90 mm Hg or were treated with any antihypertensive drugs were excluded. The blood was sampled at rest and immediately after peak exercise for measurement of renin, Ang II, aldosterone, and catecholamine.
Results: At rest, there were no significant differences in BP, renin, aldosterone, and catecholamine levels between the 2 groups. The renin, aldosterone, and catecholamine were increased during exercise, but there were no significant differences between the groups. However, log Ang II at rest (0.78 ± 0.32 vs. 0.98 ± 0.38, p = 0.004) and peak exercise (0.84 ± 0.35 vs. 1.17 ± 0.51, p < 0.001) and the magnitude of the increment of log Ang II with exercise (0.06 ± 0.12 vs. 0.19 ± 0.20, p = 0.003) were significantly higher in the exaggerated BP response group.
Conclusions: An exaggerated BP response to exercise was associated with augmented rise of Ang II during exercise.
Key Words: angiotensin II • catecholamine • blood pressure • exercise
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Abbreviations and Acronyms
| | Ang = angiotensin | | BP = blood pressure | | Epi = epinephrine | | LV = left ventricle/ventricular | | NE = norepinephrine | | PRA = plasma renin activity | | SV = stroke volume |
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J. Am. Coll. Cardiol. 2008 52: A23-A24.
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