Wednesday, February 29, 2012

Why It’s So Important to Keep Moving

http://well.blogs.nytimes.com/2012/02/29/why-its-so-important-to-keep-moving/

February 29, 2012, 12:01 am
By GRETCHEN REYNOLDS

[...]

in the current study, which was published this month in Medicine & Science in Sports & Exercise, the scientists created a more realistic version of inactivity by having their volunteers cut the number of steps they took each day by at least half.

[...]

During these three days, according to data from their glucose monitors, the volunteers’ blood sugar did not spike after they ate.

But that estimable condition changed during the second portion of the experiment, when the volunteers were told to cut back on activity so that their step counts would fall below 5,000 a day for the next three days.

[...]

And there were changes. During the three days of inactivity, volunteers’ blood sugar levels spiked significantly after meals, with the peaks increasing by about 26 percent compared with when the volunteers were exercising and moving more. What’s more, the peaks grew slightly with each successive day.

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