@DopeyBadger , I wanted to follow up on this. You mentioned how one can only build in training load for 12 - 16 weeks effectively. I'm looking toward my late-fall 30K trail race, it it looks like I will have 22 weeks of training possible leading up to the race. I have been doing my peak LR 3 weeks prior to race day...I am not sure if the time between the peak LR and the race was included in what you meant by 12 - 16 weeks. If the three weeks of taper after the peak LR are not included, then I have 19 weeks of training possible. Still a bit long.
What would you suggest? I am guessing a race in there. Maybe another 10k? (I am doing a 10k on June 25, which is prior to this training cycle I'm discussing.) When? I would take a week off from running after that. But then I don't think I would necessarily have to complete start over in terms of my base-building. I'd appreciate your insight on this.
I'm just trying to block things out. Then I'll be able to think about some periodization of hill repeats and other types of workouts.
With 22 weeks, you very likely don't want to try and split this into two separate training plans. You're much better off doing something like 50-60% of the peak volume for the next few weeks as a run-in into the plan, and then start to increase the volume.
Depending on how you look at it, the "12-16 weeks of building" does encompass the end of the plan. Training load is really an aggregate of what you've done over the last few weeks (6 weeks by one definition) and how it compares to what you're doing right now. The right now is where you'll see a drop during the taper, but the 6-week value will still be seeing an increase during the taper because you're still likely to be doing more than the average volume from 6 weeks prior.
As a theoretical example and holding intensity constant where volume is the only variable (for the sake of the example I will assume a peak of 8 hrs which means 50-60% is 4:00-4:50 hrs):
Race Week (taper) - 4:00 hrs + Race
1 Week Prior (taper) - 5:30 hrs
2 Weeks Prior (taper) - 7:15 hrs
3 Weeks Prior (Peak) - 8:00 hrs
4 Weeks Prior (Mod) - 6:45 hrs
5 Weeks Prior (Peak) - 7:30 hrs
6 Weeks Prior (Recover) - 5:15 hrs
7 Weeks Prior (Peak) - 7:00 hrs
8 Weeks Prior (Mod) - 5:45 hrs
9 Weeks Prior (Peak) - 6:30 hrs
10 Weeks Prior (Recover) - 4:45 hrs
11 Weeks Prior (Peak) - 6:00 hrs
12 Weeks Prior (Mod) - 5:15 hrs
13 Weeks Prior (Peak) - 5:30 hrs
14 Weeks Prior (Recover) - 4:00 hrs
15 Weeks Prior (Peak) - 5:00 hrs
16 Weeks Prior (Mod) - 4:15 hrs
17 Weeks Prior (Peak) - 4:45 hrs
18 Weeks Prior (Base) - 4:30 hrs
19 Weeks Prior (Base) - 4:30 hrs
20 Weeks Prior (Base) - 4:30 hrs
21 Weeks Prior (Base) - 4:30 hrs
22 Weeks Prior (Base) - 4:30 hrs
So then look at the average # of hrs in the six weeks prior
Race Week (taper) - 7:00 hrs
1 Week Prior (taper) - 6:42 hrs
2 Weeks Prior (taper) - 6:57 hrs
3 Weeks Prior (Peak) - 6:42 hrs
4 Weeks Prior (Mod) - 6:27 hrs
5 Weeks Prior (Peak) - 6:07 hrs
6 Weeks Prior (Recover) - 5:52 hrs
7 Weeks Prior (Peak) - 5:52 hrs
8 Weeks Prior (Mod) - 5:37 hrs
9 Weeks Prior (Peak) - 5:20 hrs
10 Weeks Prior (Recover) - 5:05 hrs
11 Weeks Prior (Peak) - 5:00 hrs
12 Weeks Prior (Mod) - 4:47 hrs
13 Weeks Prior (Peak) - 4:40 hrs
14 Weeks Prior (Recover) - 4:30 hrs
15 Weeks Prior (Peak) - 4:35 hrs
16 Weeks Prior (Mod) - 4:30 hrs
17 Weeks Prior (Peak) - 4:32 hrs
So my advice with 22 weeks remaining:
4-6 weeks of holding volume around 50-60% of desired peak
16-18 week training plan getting more specific to the goal race as time proceeds
You can do a single workout during the initial 4-6 weeks. But I'd do something very simple and light. Something like very brief uphill sprints or very short duration critical velocity intervals.