How about a challenge that works the legs and Butt?
Warm up for a few minutes with jumping jacks and some run in place butt kickers and/or high knees.
Ready? Lets roll—> 3 exercises, 1 minutes each. Repeat the set of three, 4 times!
Squats
1. Stand with feet shoulder-width apart, tighten abs.
2. Slowly lower into a squat [...]


































