Posted: 20/05/2016 at 07:42
I think if you used to be a runner,then you could safely build back up quicker than the couch to 5k plan. Try week 3 and see how you get on. When I've returned to running in the past I've started again with something like 3 minutes run 2 mins walk (whatever I'm comfortable with at the time) but progressed to continuous running much quicker than the c5k plan.
I've never actually used the plan for myself but accompanied my wife when she tried it, she however wasn't able to progress as quick as the plan and needed to repeat weeks before advancing to the next stage, so everyone's different.
Good luck with your comeback, I've recently returned to regular running (again) and am loving it at the moment.
(Edited to add when I've lapsed on my running previously its been due to other hobbies, work or laziness rather than injury forcing me to stop)