Are you ready to tighten your tush and work your abs this month?
Join us in this challenge, which you can change up to suit your fitness level. If you want to add intensity, add weights. If you want to mix up your cardio, insert these circuits between 5-minute cardio intervals.
Have fun (especially on that fourth fun little circuit, bwahahahahaha)!
Click the picture below for a bigger version.
Butts and Guts Challenge