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This study examined the effect of walking, which is aerobic exercise, on blood pressure and serum lipid in elderly women in their sixties with hyper tension. To do this, this study conducted walking for 12 weeks with 50 minutes each and 5 times per week and obtained the following results. 1. Change in blood pressure Change in blood pressure with walking: An experimental group decreased mean 22.43mmHg in systolic blood pressure and mean 5.12mmHg(p< .001) in diastolic blood pressure. A control group decreased mean 1.42mmHg in systolic blood pressure and mean 0.78mmHg(p< .001) in diastolic blood pressure. But there was no statistically significant changes. 2. Change in serum lipid With walking, an experimental group decreased about 11.31mg/ in cholesterol(TC) and about 18.22mg/dl in triglycerides(TG), showing statistically significant difference(p< .05). HDL-C increased about 1.67mg/dl and LDL-C decreased about 3mg/dl, not showing statistically significant difference. In a control group, TC, TG, and LDL-C did not change or increased, whereas HDL-C decreased. But there was no statistically significant changes