Take it easy (at least 70% of the time)

Today's run (treadmill): 2.5 miles

I read in a recent Runner's World that 70% of your running should be done at an easy pace. This was defined as running at a speed that allows you to comfortably maintain a conversation. The concept behind this "Easy/Hard" ratio is that slower running helps build capillary beds within muscles. Hard running tears up  muscles and easy running repairs and strengthens them.

With the almost constant rain we've had since Sunday night, I planned for an indoor morning run. I really don't like the treadmill but I planned to focus on easy running and save the harder stuff for the end of the week or the weekend. Since I was indoors I skipped wearing a running shirt and that helped keep me cool. I started very slow (5.1 MPH) and worked my way up by tenth of a mile increments until I reached a 9:00 pace. 

In all, I covered my usual morning distance although it did take me a couple of extra minutes to do it. Hopefully the weather will clear and I can get back outside in the morning. Will I run it easy or hard? With my lower back still slightly tender, I'm thinking that I'll defer to the 70% side.