The purpose of this study was to determine the effects of aerobic training and diet on blood pressure and Renin-Aldestron of obese women with hypertension. Method: Twenty one volunteers who exhibited stage 1 hypertension (mean; 141/9 mm Hg systolic and 87/75 mm Hg diastolic), with (age range: 30-49 years and BMI: 34/26 kg/m2) were selected. After the complement of questionnaires, they were randomly divided into two groups; a) aerobic training with diet group (n=11) and b) diet group (n=10). The first group who took part in weekly group sessions for instructing on weight loss (low calorie diet; 1000 to 1500 Kcal and all kinds of food) with the exercise (16 sessions aerobic training program with 40-60 percent of vo2max; 3 times in week). The second group who took part in weekly group sessions for instruction on weight loss (low calorie diet; 1000 to 1500 Kcal and all kinds of food).Blood pressure, Anthropometric parameters, metabolic and hormonal profiles and VO2max were measured in the first, eight and sixteenth sessions. Results: Both groups showed a significant reduction in weight, BMI, body Fat percent, mean arterial and systolic blood pressure and an increase in VO2max. Only the first group showed a significant decrease in waist circumference, diastolic blood pressure and an increase in cholesterol and rennin levels. Conclusion: The Combined program (aerobic training with diet) is more effective in lowering blood pressure and provides cardiovascular improvements in overweight/ obese women who have stage 1 hypertension

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