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Old 04-18-2007, 08:47 PM   #22
Yael Grauer
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Join Date: Oct 2006
Location: Minneapolis, MN
Posts: 1,590
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I did 15 seconds of sprinting and 45 seconds of rest on a treadmill for 20 minutes five days a week when I was trying to improve my run time in my pre-Crossfit days. It was an idea from a boxer/boxing coach/SF stud I know. I got my 12-minute mile down to a 7-minute mile this way.
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