Gliding Ab Curls Workout on a Fitness Disc

"This gliding exercise is going to target the abdominal area so I want you to grab your gliders, sit at the end of your mat and then slowly lower yourself down. Place your hands on the gliders and you are going to be pushing through the floor with your hands spread open. It is a regular abdominal curl or crunch although the resistance is coming by pressing into the floor. I am going to keep my chin away from my chest. My focus is up at the ceiling and again pushing down through the gliders to create the resistance. I can advance this exercise by lifting one foot up as I curl, exhaling as I lift, inhaling as I lower and one more level of the exercise to intensify it if you are ready is to press through the gliders, lift both feet as I curl up and relax back down, exhale and lift, and release back down and we'll try two more, exhale and lift and release and lift and again if that is too intense then just keep both feet on the floor, both hands on the floor and after several repetitions you should feel a good muscle fatigue in the abdominal section."