From the journals I've read, it seems Guichet patients are able to do stationary bike right after waking up from the surgery, while Paley patients are bedridden for days.

Is this accurate, or Paley patients just aren't instructed (rather than able) to do this kind of physical exercise right after the surgery?

What makes Guichet patients recover so fast that patients of other doctors can also do (rather than the surgical technique itself)?