BACKGROUND: The aim of our study was to evaluate the effect of 8 weeks of aerobic exercise with vitamin D supplementation on indulin-1 and nitric oxide in patients with hypertension aged 30 to 50 years. METHODS: This study was conducted as a semi-experimental pre-test and post-test design, and was conducted from June 1401 at Seyyed Shohada Hospital in Urmia. 40 eligible men and women were randomly divided into four groups (supplement group, placebo plus exercise group, a supplement plus exercise group, and a control group). The training program of the experimental groups included eight weeks of aerobic exercise running on a treadmill (3 sessions/8 weeks). Blood sampling to evaluate biochemical variables was performed 48 hours before and after the intervention in a fasting state with a volume of 10 cc. RESULTS: The results of the study show that after 8 weeks of aerobic exercise, vitamin D, BMI, NO, ET-1 and weight were significantly affected (p < 0.05) and systolic blood pressure in the supplement, supplement plus exercise and exercise plus placebo groups changed compared to the control group (p < 0.05). CONCLUSIONS: Based on the results of the present study, the results showed that taking eight weeks of vitamin D supplements along with aerobic activity reduced blood pressure indices in the subjects. Also, taking vitamin D supplements along with physical activity reduced BMI and increased NO, reduced ET-1 and body weight in the subjects in the study.

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