In this video Brooke Burke demonstrates how to do leg lifts. This exercise targets the abs. Lay your mat on the floor. Lie on your back with your hands on the floor. Raise both legs together, keeping them straight. Do it slowly to make it a little harder, and lower them again but not right to the floor. Do this ten times at first, then aim for twenty times. Keep your lower back on the ground. Rest a little. Now to make it even more difficult, do it very slowly, counting down from five until one. When you reach one, hold it there, and you will feel this in your abdominal muscles. The lower your legs to the floor and rest. That's it.