By all means, enlighten me.
Originally Posted by Ashe
BTW I'm going to start looking into these (with a partner holding me instead of using the device) as a free alternative.
jandas are good, too. Why not do both? If you want abs, hit your core with variety.
I'm going to make an Amazon.com run in a few weeks when I've made some more money, I'll probably buy one of the cheap wheels then, and possibly a pullup bar (along with some new CDs of course).
Our dojo has one that we can use during our warm up and conditioning. I can feel it in my abs the next day.