This last month I have been fairly consistent with the stretching and core workouts. Two to three times per week for 20 minutes seems to be about enough for me. I could definitely do more but it is hard to make it a priority.
My current routine is 4 or 5 upper leg and hip stretches, 2 sets of situps and pushups, and shallow knee bends. This routine definitely changes as I have more or less time and as the “event” gets closer. My Sunday swimming and bike commuting are adding to the core so I feel I should be in fairly good core shape by May 3rd – my upcoming marathon.
My daughter just got a new bike so the family bike rides should be a good excuse for some casual leg stretching over the next few weeks.
For me, keeping that core strong is nearly as important as speed work.
In the Shadow of the Rockies 