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Old 12-23-2011, 04:33 PM   #2
runwithme
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Join Date: Nov 2011
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runwithme has made some quality postsrunwithme has made some quality postsrunwithme has made some quality postsrunwithme has made some quality postsrunwithme has made some quality postsrunwithme has made some quality posts
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220 minus your age is your max. heart rate.
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