Thanks running man.
I can see here the start of a very useful thread. What I propose is, let your opening post be generic (as it is now, but please remove individual people's names). Individual people can then state their specific conditions/concerns which may justify deviations, and we can discuss it to help them and for general use.
I start with myself. I have been an underweight but otherwise perfectly healthy specimen all my life. Over the last 2 months of some serious cycling I am now having noticeable improvement in my leg musculature and overall weight (and bigger "glutes"


). Surprisingly, when I returned to running after 1-2 month gap (The Greifensee run I told you about), I noticed my running has actually improved in the period. Earlier I only used to run 3-5 kms 2-3 times a week, and walk on other days.
The point is, weight
increase and cycling seems to beneficial for me. So, unlike most other people I would hope to put on an additional kilo by the time of my targeted marathon, rather than lose weight.
Given this background, what I had in mind was something like this: I will do one 10 km on our Wednesday group runs, and a longer run of say 20 km on weekends. Rest of the days I will just enjoy cycling/badminton and walking/rest days. Cycling will keep my muscles and cardiovascular stronger, giving time for bones/ligaments to repair. And badminton will prevent my upper body from degenerating due to redirecting of scarce resource to my lower body (I don't want to look like those marathon runners with thin arms, however much I admire them). And gorge on all the chocs and cheeses guiltlessly


.
Does this plan make sense? Feel free to post your comments/critique; I would appreciate them