This question about running injury and recovery came via email last week from ultra marathoner George Nelson of Newport News, Virginia:
This past August I ran solo across my home state of Wisconsin with the help/support of some of my high school classmates (1973). I covered 218 miles in exactly 7 days as I had planned. Started at noon on 8 August and finished at noon on 15 August. During the run, everything went almost perfectly, except for very hot & humid weather (low 90s almost the whole week).
However, since getting home (Virginia) I have had a much slower recovery than expected. It has taken months for my lower quads to stop aching when I run.