Wednesday, May 13, 2015

How much exercise do you really need?

By Penni Jones
Better Living Staff Writer 

For years, experts have been debating on how much exercise is the right amount to improve health and longevity. The Journal of the American Medical Association (JAMA) recently published two new large-scale studies that provide some clarity. 
The conclusion is that the ideal dose of exercise for a long life is a little more than most of us currently believe we should get, but less than many of us might expect. The studies also found that intense or prolonged exercise is not likely to be harmful and could add years to people’s lives.  And no exercise at all is the most harmful, as exercise reduces the risks for many diseases and premature death.
The Department of Health and Human Services currently recommends 150 minutes per week of moderate aerobic, or 75 minutes per week of vigorous aerobic activity, plus strength training twice a week. 
The larger of the two studies found that those who met the guidelines lowered their risk of death by 31% during the 14-year study period, compared to those who did not exercise. But tripling the amount of exercise had the greatest benefit. Those who engaged in moderate exercise such as walking for 450 minutes per week (just over an hour a day), lowered their risk of premature death by 39%, compared to those who did no exercise. At that point, the benefits plateaued. 
The good news is that 450 minutes per week is not necessary to gain benefits from exercise. And the amount that is good for each person varies, depending on health.  For more information on how much exercise is right for you, contact Better Living at (734) 747-0123. 


 

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