Walking to Prevent Heart Disease in Women
Arch Fam Med. 2000;9:227.
In the Nurses' Health Study, increased physical activity (energy expenditure) was associated with lower rates of heart disease in a dose-response fashion. Women who walked at a pace faster than 3.0 miles per hour for 3 hours a week had about one third fewer coronary events. (N Engl J Med. 1999;341:650-658.)
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