Kettlebells

I have never personally accomplished this, but sure love trying. FYI, I use a 15 lbs kettle bell and do 3 reps versus his 5. I also did sit ups and push ups instead of foam roller. It is not a super exciting work out. I like to watch tv while I am doing these. And yep, your butt gets bigger. Just saying:)

http://www.activeresponsetraining.net/the-10000-kettlebell-swing-workout