Every Monday I do intervals at the track. I'm working hard to have a better run during tri's. I'm getting some pain deep in my hip. It concerns me because it is very hard to stretch forward afterwards or the next morning. I do not feel it during normals runs, only acceleration runs.
Anyway I pyramid up with 2 x100, 2x 200, 2x400, 2x800, 2x1600, 1x 800, 1x400, 1x200, 1x100. Total distance is about 7 miles. My 1600's are now about 8 minutes. I would ove to be able to maintain this pace for a 10k.