Regular, Vigorous Exercise May Lower Stroke Risk
Direct effect not shown in study, but experts say physical activity's impact is clear
Steven Blair, a professor who studies exercise at the University of South Carolina, praised the study and said a 20 percent reduction in stroke risk is "a reasonably big deal," especially in comparison with medical treatments for some conditions that may have the same effect.
The message "is simply that everyone should strive to meet our Health and Human Services physical activity guidelines -- all adults should get 150 minutes of moderate intensity physical activity per week, 75 minutes of vigorous intensity activity, or mix and match with one minute of vigorous being equal to two minutes of moderate," Blair said. "The exercise bouts should be at least 10 minutes in duration. So if everyone took three 10-minute walks a day on at least five days of the week, this would have a dramatic effect on disease rates in the U.S. population."
The study appears online July 18 in the journal Stroke.