Knee walkers help those who are injured from below the knee through recovery. It really helps the injured part from touching the ground accidentally. There are injuries to the foot or ankle that requires that there be no weight on it during the recovery period. And when below the knee injured people need to move around, we usually see them in crutches which give them a hard time supporting their whole body and swinging on it. With a roll about scooter, the person does not need to strain one leg to support the whole body while keeping the other leg or foot up all the time. The leg with the injured foot will be kneeling on the knee walker and comfortably resting on it. The wheels allow the person to move more freely while being supported by the knee walker.