Every month Oprah writes a column for O, Magazine called, "What I Know For Sure." What I know for sure is that every time I work out with my trainer Aaron he's going to find a new way to torture me. Sometimes it's heavier weights, sometimes it's faster speeds, and sometimes it's crazy new devices that bring nothing but pain. This week…Bulgarian power bags.

I'm sure there is some long story about how these crazy bags came to be, all I know is that they work. First, he had me take the weighted bag by both handles (I'm using 11 and 17 pounders) and swing it over my head in a sort of circular motion. Kind of like a tilted halo (though, there's nothing angelic about this experience. Trust me.). We also used the bag for the world's most evil game of catch, and I wore the bags on my shoulders while doing my all time favorite activity (note the sarcasm)--steps.

At the end of the workout I was feeling a little… cocky. That's right, I rocked it. Aaron said I had, "great form" and the speed in which I threw the bag around my head was, "awesome." Plus, I didn’t knock myself unconscious, which is always a plus. As the day went on though, reality sank in. First, I had a hard time opening a door. Then, I could barely get out of my chair. By the end of the day I was almost completely immobile. Who knew these crazy bags would have such an impact?!

For those of you who don't have an Aaron, definitely try lifting and holding weight above your head. Before these crazy bags, Aaron had me hold a 15 pound weight over my head and move it in a circular motion. Ten times to the right, ten times to the left--3 sets. It's a killer.

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