Side Plank
“This move is amazing for your obliques!” says Jeanette Jenkins, whose workout DVD Sexy Abs, features Rowland, 31. Place your left forearm on the mat, elbow bet at a 90-degree angle directly under your shoulder. Pull your abs in and lift your hips so you’re balancing in a straight line on your left foot and arm. Slowly lower. Repeat 15 reps on each side.