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on Sunday, July 19th, 2009 at 2:58 pm and is filed under Aerobic Exercise.
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One Response to “In order to achieve maximum results from aerobic exercise, one should maintain ones heart rate at a certain le”
July 19th, 2009 at 3:01 pm
caskey
sorry what, are you looking for help or are you bored?
i m guessing around 12