I don't know if you have ever tried the lift chairs that are on the market now. They come up and tilt forward, the arms tilt forward and if you try to use them you are likely to slip off plus you have to hold on to the controls. The back comes forward and pushes you out, it actually throws you out of the chair. Very frightening for a feeble old person. My design the arms come up and forward. The back stay straight up. The controls are a bar that you can reach with you finger tips while leaning on the arm. It helps you out and doesn't throw you out.