mathwl wrote:Is there a disposable diaper that's big/stiff enough that it could cause you to be unable to walk? or would I have to double/triple to get that effect.
To the best of my knowledge, there isn't a disposable that stiff. You could set up a rigid hip abduction splint, but the spread-legged position might make using an adult stroller difficult.
A device limiting the extension of the knees, holding them in the bent position, would prevent you from walking or standing. Knee restraints would also have the virtue of not interfering with diaper changes or riding in strollers.