I have been looking at some examples of Japanese marathon training and have seen references to the leg building phase, but haven't really seen any examples as to what this would entail (other than Seko's log -
http://www.bunnhill.com/BobHodge/trainingLogs/seko.htm
) which doesn't give any details of paces for the effort days in a lot of cases.
Any more samples out there on this phase?