The problem sometimes is people see training plans, see week 1 has runs of a certain distance and think that means complete beginners who have never run before can expect to complete those distances. It sadly ain't that simple. A fit person may have a chance, but an unfit person who doesn't run is likely to struggle to complete even week 1. And if they do somehow make it, they'll probably pick up an injury in week 2 or 3. I found this out the hard way.
Sorry my fault, what I meant was the longest run is 5 minutes in the session. You do 3 minutes, 5 minutes, 3 minutes, 5 minutes.. with walking breaks in between. I do have the option of cross training too, that's a good point.
I have a similar question if I may. I'm currently doing the C25K but my progress has been rather hit and miss due to having a couple of weeks without running and i'm currently on week 4 of 9. But finding even that tough. I currently run three times a week. Is there anything wrong with running perhaps five times a week?
I'm concious that my overall aerobic fitness is at rock bottom and I feel like I really need to build that up quicker than I am currently. I want to run every day, I just don't because I'm worried about over doing it. But if i'm only running for a max of 5 minutes, am I being over cautious? If my legs feel fresh, should I just go for it?