[Archaea]

I would very much like to break 1:30 but every time it looks possible I get injured. In your forties, running fast often causes injuries.

So I'd like to design a running program to break 1:30 while staying healthy. I'm about a 1:38 to 1:35 on a good day, but unless I'm going downhill, I don't know where to find the extra twenty seconds a mile.