The Best Gadgets to Make You Slim
How-to: Roll-the-Ball with Uneven Push-Up
Come into plank position (the "up" part of a push-up) with right hand on the ball and left hand on the floor or mat (A). Tighten abs and squeeze shoulder blades together as you bend your elbows to lower your chest toward the floor (B). Push back up, then use your right hand to roll the ball to your left hand. Repeat sequence on the left side; that's 1 rep. (Too challenging? Drop your knees.) Do 10–12 reps.
No gym or medicine ball? Use a basketball or soccer ball instead. Or, use a stack of books: Do 10 reps with one hand on them, then walk your hands over so the other hand is on top and repeat.