Originally Posted by IluvSQ

You do not go gate to gate.
You will be taken from arrival gate through transit security, and then upstairs to the departure concourse.
Even if your arrival and departure gates were next to each other, you would still have to navigate the 1 km or so
to and from transit security.
That being said, on 1 ticket I would not worry at all, just ask for a wheelchair to take you all the way and it
will be the airline's responsibility.