Whether you log a marathon or a single city block, running—even slowly—may greatly reduce the risk of a cardiovascular-related death when compared to people who do not run, says a new study published Monday in the Journal of the American College of Cardiology.
The U.S. government and the World Health Organization currently suggest either 150 minutes of moderate-intensity (brisk walking, gardening or physical chores around the house) or 75 minutes of vigorous-intensity aerobic exercise (running, cycling, swimming or competitive sports) per week. Yet very little research exists looking at the benefits of vigorous exercise below 75 minutes.
Researchers examined data from the Aerobics Center Longitudinal Study to see if there was a connection between running and longevity. The research followed more than 55,000 adults between the ages of 18 and 100 over a period of 15 years, recording their daily activity, including running. They found that the benefits of running were the same regardless of sex, age, weight, health conditions and substance-use history, with all runners showing a 30% lower risk of death from all causes, and a 45% lower risk of death from a heart attack or stroke. Out of the original sample of people, 1,217 died of cardiovascular disease—and only 24% of them reported running as part of their exercise routine.
Dr. DC Lee, lead author of the study and assistant professor of kinesiology at Iowa State University, found that runners who ran less than an hour per week had the same longevity benefits as runner who clock more than 3 hours a week. However, those who ran more consistently over a period of six years benefited most.
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