The purpose of this research is to investigate the effect of an 8-weeks aerobic exercise on blood lipoproteins / colestrol, triglicrid, VLDL-c , HDL-c , LDL-c , RF. 30 healthy nonathlete middle-aged women of Ahvaze were selected randomly. They were divided into 2 groups: 15 exercise and 15 control group. Before the training, pre - tests were conducted for both groups. Then the training group performed aerobic exercises with the intensity of 60-70% HRmax for 8 weeks, 3 sessions, each session an hour. During this period, the control group did not have any special physical activity and 2 groups were asked to continue their daily diets. After the 8 weeks, the 2 groups had their post-tests. The findings were analyzed. Descriptive survey and t-test (independent) were used at (?=0.05 level). The result of the present study suggests that middle-aged can reduce their cardiovascular risk factors performing endurance physical activity.
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