Thanks for the insights, darkwave. Good stuff as always, and good discussion, everybody.
It’s been a good long while now, but I ran all of my marathons off a fairly short marathon-focused cycle, essentially eight weeks plus a two week taper. Some of the things that changed when I was training for a marathon were somewhat higher mileage (maybe 70s-80s as opposed to 60s-70s in good ordinary training), somewhat longer long runs (more like 2:30 as opposed to 2:00), and somewhat higher volume workouts run closer to MP (maybe 5-8 miles of work at 10k-HM pace as opposed to 3-4 miles at 5k-10k pace, mostly in the form of mile repeats). But I think the main difference was probably how hard I would be doing the long runs, with most of the harder effort coming in the form of unstructured waves where I would build and then hold the pace and then back off for a while. It was way more haphazard than what people are mostly doing here, and there are certainly things I would do differently in retrospect, but on the whole it worked decently well for me.
In general it seems like the short cycle approach requires that you be in pretty good shape to start out with, and to some degree it may be partly a matter of perspective/terminology as far as how you define the cycle. Take Canova’s approach as an example. From one perspective, he sets up a six-month marathon cycle. But from another perspective, the “specific” part of that cycle is something like eight weeks. So, very long or pretty short, depending on how you look at it.
This also gets to ThoughtsLeader’s point about how much you emphasize training at MP. I think that’s a really smart observation, and it makes me wonder to what degree the difficulty of sustaining MP-heavy training is physiological and to what degree it’s psychological.
On a couple of other topics:
GNR: Thought you made an excellent point about the importance of the longer rest in the workout we’ve been discussing. One of the things I found striking when looking at Canova’s approach to 5k/10k training is how long the rest within higher-volume race specific workouts was (like, really long). It’s interesting to consider how those kind of extended recoveries can be useful and where they might make sense.
HHH: Both the Battersea scene and the Kenya trip sound pretty awesome.
DB: Sorry to hear about the hamstring. Hope it heals quickly!