Exercise Journal

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I was wondering since I do not have a HRM About how many calories am I burning doing the Insanity workout? I am 5'3 - 180lbs. I have been plugging in Tae bo as my exercise for the day, but I feel as if I am burning more calories with the Insanity then the Tae bo. What would you plug in your exercise journal to track the Insanity workout.

Thanks for any feed back!