Kowsar J Clin Res Paramed Sci 2345-3338 7 1 2018 6 13 10.5812/jcrps.79971 Investigation and Comparison of the Effects of Eight Weeks of Resistance and Endurance Training with Vitamin D<sub>3</sub> Supplementation on Blood Pressure, Resting Heart Rate, and Body Composition in Obese Hypertensive Middle-Aged Men Dariush Sheikholeslami Vatani Mehdi Hakimi Lotfali Bolboli Marefat Siahkouhian mehdi Hakimi Research Article 2018 6 9 2018 5 10 2018 6 13 2018 06 30 Background and Objectives : The purpose of this study was to investigate and compare the effects of 8 weeks of resistance and endurance training with vitamin D 3supplementation on blood pressure, resting heart rate, and body composition in obese hypertensive middle-aged men. Methods : Sixty-three obese hypertensive men (age = 39.85 ± 2.8 years; BMI = 31.6 ± 1.4 kg/m 2) volunteered to participate in this study and were randomly divided into six groups: resistance training with vitamin D 3(R + D, n = 11), resistance training with placebo (R + P, n = 12), endurance training with vitamin D 3(E + D, n = 9), endurance training with placebo (E + P, n = 11), vitamin D 3alone (D, n = 10), and control with no intervention (C, n = 10). The training protocol consisted of endurance and resistance training three times a week for 8 weeks. The supplementation groups consumed 3000 IU of vitamin D 3daily, and the placebo groups ingested the same amount of maltodextrin. Results : The training groups showed a significant decrease in the post-test fat mass, resting heart rate, and systolic and diastolic blood pressure compared with the pre-test values. Also, the fat-free mass significantly increased only in the R + D and R + P groups. No significant changes were observed in the C and D groups. Moreover, there were significant differences between the groups in the post-test fat mass and systolic blood pressure in favor of the E + D group. Conclusions : Although endurance and resistance training with vitamin D 3supplementation improved the body composition, resting heart rate, and systolic and diastolic blood pressure, the reduction in the systolic blood pressure and body fat mass was significantly higher in the E + D group. http://jcrps.com/en/articles/79971.html https://cdn.neoscriber.org/cdn/dl/7ffc69ae-8cc7-11e8-8af0-b7e54ad211f1