Hello. So around new year i got stabbed in the leg. It was a painful accident.

I have been in bed for about 2-3 weeks. And only recently started walking normally. There is no pain anymore and the doctor said im ready to exercise again.
I did all i can to cut my intake so i dont get fat while i was down, with my slow metabolism and all.
So want i wanted to ask was how do i start my training again ,i obviously cant do the same amount of intensity while jogging. (i dont lift, just jog).
IF anyone has been trough an injury like that please let me know how you resumed your training.