> And I would not recommend starting with boots then transitioning to runners
Indeed, I would even rather hesitantly suggest that the lighter the footwear, the less strain on the injured part of your foot.
In other words, putting big heavy boots on an injured foot would just increase the strain on the recovering bits.
What so many medicos do not understand is that the weight of a light-weight pack is but a small fraction of your body weight. Most of the load on your feet comes not from the pack but your own body.
Shoulder injuries excepted!