Effects of a 12-week aerobic exercise on markers of hypertension in men

Behrouz Baghaiee 1 * , Pouran Karimi 2, Khadije Ebrahimi 3, Saeed Dabagh Nikoo kheslat 4, Mohammad Hossein Sadeghi Zali 5, Amir Mohammad Daneshian Moghaddam 6, Mohammad Sadaghian 7

1 Department of Physical Education and Sports Science, Jolfa Branch, Islamic Azad University, Jolfa, Iran
2 Neuroscience Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
3 Department of Physical Education and Sports Science, Marand Branch, Islamic Azad University, Marand, Iran
4 Department of Exercise Physiology, Faculty of Sport Sciences and Physical Education, University of Tabriz, Tabriz, Iran
5 Department of Microbiology, Faculty of Veterinary Medicine, Urmia Branch, Islamic Azad University, Urmia, Iran
6 Department of Agriculture, Faculty of Veterinary Medicine, Shabestar Branch, Islamic Azad University, Shabestar, Iran
7 Department of Pathobiology, Faculty of Veterinary Medicine, Shabestar Branch, Islamic Azad University, Shabestar, Iran

Abstract

Introduction: This study was aimed at determining the effects of a 12-week aerobic exercise program on markers of hypertension in men.

Methods: The study was of a semi-experimental design featuring repeated measurements. A total of 40 men (age range=37.9 ± 2.68) with primary hypertension were divided into two groups, namely, the exercise group (n=20) and the control group (n=20) (systolic blood pressure [SBP]: 140.531 ± 0.23, diastolic blood pressure [DBP]: 90.71 ± 0.05). The exercise group participated in a 12-week aerobic exercise program (55% to 70% of HRmax). Blood samples were taken from both groups at the baseline and at the 4th, 8th, and 12th weeks of the training program for the assessment of adiponectin, paraoxonase-1 (PON-1), and hydrogen peroxide (H2 O2 ) levels as the markers for investigation. A linear mixed model was also used to evaluate the association among the markers.

Results: In the exercise group, exercise reduced the SBP and DBP at week 12 (P=0.031 and 0.023, respectively), and adiponectin increased at weeks 8 and 12 (P=0.014 and 0.001, respectively). The plasma PON-1 level showed a significant increase in all the three stages of measurement (P=0.007, 0.004, and 0.002 at weeks 4, 8, and 12, respectively), whereas the H2 O2 levels showed a significant decrease at weeks 8 and 12 (P=0.013 and 0.011, respectively). The control group exhibited significantly decreased PON-1 (P=0.003) and adiponectin (P=0.025) levels but significantly increased SBP at week 12 (P=0.032).

Conclusion: The exercise-induced reduction of oxidative stress exerts a considerable effect on the reduction of blood pressure in hypertensive patients. According to our results increase in oxidative stress has the great impact on the of blood pressure.
Keywords: Hypertension, Exercise, Oxidative Stress, Lifestyle

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