The Ab Chair Deluxe has the classic ab crunching design (and looks like Ab Lounge) where you sit in the chair and crunch your abs together by pulling your body forward while sitting on the chair. With the Ab Chair Deluxe, you get the fullest range of motion possible _ndash; meaning that you get to determine the intensity of your ab workout.
I purchased the ab lounge and I liked it. I injured my back at work so I purchased the machine and it worked great for me. I canr’t do traditional sit ups so this chair worked for me. I guess if you train hard core this probably wouldn ’t be the best machine for you, but it worked for me and my bad back to build my core muscles and abs.
Both the ab lounge and the ab chair work the same way. Adjust the footrest so that your hips are directly above the chair or lounge's hinge. Sit down in the chair and grasp the grip straps or upper bar of the frame in both hands. Stretch back, letting your body hinge open at the hips, then squeeze your abs and hip flexors to bring your upper and lower body back together, as if they were the two covers of a book being closed.