Slogged my way through R3 this evening. I'm finding that I have aching quad muscles after running - whether due to my flat-footed running style or to hard surfaces, I'm not sure. I did some yogalates yesterday to stretch out my muscles, and that seemed to help a bit.
Today, when I got to Canary Wharf, I was surrounded by what looked like the world's fittest people - crowds of men pounding along the pavements, and cyclists swooping past me. I don't know whether there was some sort of event on or whether this is just how these people make their way home from work, but I was amazed at their Olympian level of fitness compared to my wobbly self.