You don't have to exercise for 30-minutes every to get most of the benefits from exercise, say scientists at the American Heart Association. No need to exercise for an hour at a time for a healthy heart. Longer exercise periods will, of course, give you greater physical endurance. You don't have to exercise for 30-minutes every to get most of the benefits from exercise, say scientists at the American Heart Association. However, the benefits of physical activity did not increase further after 24 minutes per exercise period.
Results confirm logic.
Results show that men who exercised five or more times a week had 46 percent fewer heart attacks and a 44 percent lower risk of heart attacks and deaths due to heart disease, compared to men who exercised less often than once a week. No surprize there. Physical activity was defined as exercise vigorous enough to work up a sweat. The combined risk of heart attack or death due to one or more heart attack decreased about the same amount. The effect of exercise duration was greatest among men who worked out for 11- 24 minutes per exercise episode or longer.