There are many variations to what are called prison pushups. With this variation we will start standing. Squat, lay back on your back and sit up. When you are at the top of your sit up put your hands on the floor and hop back into pushup position. Complete a pushup. When you are at the top of your pushup, jump your feet back to your hands and stand up to finish the squat you started at the beginning of the exercise. That is one rep!