Shape Up in 7 Minutes
Legs & butt: Shuffle dumbbell swing
Stand with feet wide, an 8- to 10-lb dumbbell between feet. Squat down (knees behind toes) and shuffle to left, then back to center; grab dumbbell with both hands. Straighten knees while turning legs and body to right, swinging weight up and straight out to right as if swinging a baseball bat.
Return to squat position and repeat on opposite side; continue alternating for 60 seconds.