Thoughts on the Run: Just how fast is fast?

This morning, my legs ached and were sore. My quads felt like lead weights. My calves burned a bit and my groin was stiff and tender. Yep, it was the day after a race. And as I crawled out of bed, I did what any self-respecting runner would do… I winced, placed both feet on the floor and said “Where are my shoes…I need a run!”