I'm starting my HIIT tonight, but I prefer to run outside.. Has anyone ever done this without the use of a treadmill? I'm concerned that I'll have difficulty with my speeds.. Can you really know the difference between a "3" and a "5" without a treadmill?Answer Question
Answer by Mom2Jack04 at 12:56 PM on Jun. 9, 2009
Answer by lifeasinoit at 6:46 PM on Jun. 9, 2009
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at 13 1/2 weeks, shouldnt you be able to hear the heartbeat..and do you...