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By kilax, December 31, 2009 5:33 am

We all want to know – how much exercise do we really need each week? How little can we get away with?

There was an interesting (although VERY confusing) article on the Well blog covering this topic yesterday.  The article stemmed from a study done in Scotland that concluded you only need 20 minutes of exercise a week to increase your contentment. Okay, but how much do you need to be healthy?

That’s more difficult to define. The article went into a discussion about “MET” minutes, which are “Metabolic Equivalent of Task” minutes. Huh? Apparently  you need 500 of those as week, and they vary based on what you are doing for exercise and how intense it is. For example, running at 6 mph is a 10-MET activity. So if you run for 60 minutes, that is 600 MET minutes. So, you’re done for the week then? Confusing…

Has anyone heard of this MET mumbo-jumbo before? How do you decide how much to exercise a week? Do you have any exercise goals for 2010?

I aim for at least 30 minutes a day, but usually go by how I feel. If I am in the groove, I will keep going! If I feel like crap, I won’t work out at all.

A few other interesting points from the article (repetitive, but interesting):

According to the Physical Activity Guidelines report, “It has been estimated that people who are physically active for approximately seven hours a week have a 40 percent lower risk of dying early than those who are active for less than 30 minutes a week.”

Interestingly, they did not find that exercise beyond a certain point conferred significant additional health benefits. Instead, the “dose response” for exercise, the committee found, is “curvilinear.” In other words, people who are the least active to start with get the most health benefit from starting to exercise. People who already are fit don’t necessarily get a big additional health benefit from adding more workout time to their regimens.

You do not necessarily have to divide your exercise time into daily allotments, either. Existing “scientific evidence does not allow researchers to say, for example, whether the health benefits of 30 minutes on five days a week are any different from the health benefits of 50 minutes on three days a week,” according to the activity guidelines. Do what suits your schedule.

Meme time! Leah, Gelareh and Holly have all tagged me for the “7 Random Things About Me” meme. Thanks, ladies! Click “more” to read on…

And of course, Happy New Years Eve! Enjoy your evening and be safe!

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