Bootcamp - The workout. Beginner through advanced reps to give you cardio, strength, and ab exercises all in one workout. No gym or equipment needed! Can easily be done in one room while catching up on the DVR. read as: no excuses!
I hate the treadmill but for those who don't: TREADMILL SHREDMILL WORKOUT! It's 45 min long with a 5 min cooldown. This is part of my bikini comp cardio. And yes, you CAN last this long on a treadmill. Trust me.
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