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https://www.washingtonpost.com/news...druple-the-amount-of-exercising-theyre-doing/
If you're among of the millions of Americans who dutifully carve out 30 minutes a day for the moderate-intensity exercise recommended by experts based on the the idea that you're doing all that you can for your heart, you're in for some disappointing news. A new analysis published Monday in the journal Circulation finds that that amount of activity just might not be good enough. For the paper, researchers reviewed 12 previous studies involving 370,460 men and women with varying levels of physical activity. Over a mean followup time of 15 years, this group experienced 20,203 heart failure events. Each of the participants self-reported their daily activities which allowed the team to estimate the amount of exercise they were doing.
They found that those following the 30-minutes-a-day guidelines issued by the American Heart Association had “modest reductions” in heart failure risk compared to those who did not work out at all. But those who did twice and four times as much exercise experienced “a substantial risk reduction" of 20 and 35 percent respectively. The findings challenge the notion of a 30-minutes-a-day magic number for exercise. Instead, research found that physical activity and heart failure may be what they called "dose-dependent," meaning that higher levels of physical activity appeared to be linked to a lower risk of heart failure. That association appeared to hold across age groups, gender and race.
If you're among of the millions of Americans who dutifully carve out 30 minutes a day for the moderate-intensity exercise recommended by experts based on the the idea that you're doing all that you can for your heart, you're in for some disappointing news. A new analysis published Monday in the journal Circulation finds that that amount of activity just might not be good enough. For the paper, researchers reviewed 12 previous studies involving 370,460 men and women with varying levels of physical activity. Over a mean followup time of 15 years, this group experienced 20,203 heart failure events. Each of the participants self-reported their daily activities which allowed the team to estimate the amount of exercise they were doing.
They found that those following the 30-minutes-a-day guidelines issued by the American Heart Association had “modest reductions” in heart failure risk compared to those who did not work out at all. But those who did twice and four times as much exercise experienced “a substantial risk reduction" of 20 and 35 percent respectively. The findings challenge the notion of a 30-minutes-a-day magic number for exercise. Instead, research found that physical activity and heart failure may be what they called "dose-dependent," meaning that higher levels of physical activity appeared to be linked to a lower risk of heart failure. That association appeared to hold across age groups, gender and race.