I've been doing hour sessions, three days a week of strength work for the last six weeks and I'm going to continue these except for before and after race weeks until the end of the year and look at things then.
I read somewhere that "Deek" had exceptional core strength that allowed him to keep his form right to the end of marathons. In my last race my wife watched me come into the finish and said I looked a bit wobbly and that it looked as if I was weak in the stomach area.
After she got up off the ground......Joke. I took her advice and made myself a nice workout that combines power yoga with weights and some traditional exercises. Happy to pass this along if anyone wants details.
Anyway I feel much stronger already and with a diet that has me eating only fresh food, no coffee, beer or milk I have cut 10cm off my gut and I've toned up. Even though I've not cut my weight people are commenting on how I'm looking "buff" no well "healthy" at least.