Shape Up in 7 Minutes
Legs & butt: Superhero jump
Get into "up" part of push-up position; step left foot forward into lunge position, leaving right hand on floor and lifting left hand out and back. Push into both feet and jump up onto left foot, raising right knee and touching left hand to it. Return to lunge, then push-up position.
Continue for 60 seconds, then switch sides and repeat.