your shoulders, your chest, your arms, your back and your abs. now we're gonna go into ski abs. in ski abs, you work your obliques, you work your shoulders, you work your chest, you work your legs. now squat to plank, you work your glutes, your work your quads, you work your lower abs and you work your shoulders. look, you're getting a full-body workout. get in, dig deep, get it done. that's what insanity's all about. ...three... two... get up, power jumps right away, go, go, go, go, go! come on... push... push... >> i love that you're doing cardio and strength all together. you are sweating, you're getting your heart rate up and you're lifting weights with your own body, all at the same time. so i love that it's all combined together. i sweat the most i have ever sweat in insanity. it's just... hair's soaking wet, dripping off me, disgusting sweat, and i loved it. i feel pretty good about myself. i'm a mother of two, i'm in my mid-30s and i feel like i have some pretty good abs after having two kids.