JustTheFactsMaam wrote:
You can do speed work all year and run pretty well. You will likely find that your performances are consistent and you never really peak and don't improve much year over year. However, if you do base, speed, peak, then back to base, you don't restart back at your previous base level, so each year you improve. Lydiard says it takes 3+ years of this cycle to reach your true ability.
I definitely agree with this philosophy for the purposes you outline, but what happens when you are on year 15, and not year 3? When I was in high school and not really running year-round, that was the program-- base, peak, speed, and it worked really well. Kind of the same in college, except running year-round with three distinct championship seasons, and no real time for a proper base phase between indoor and outdoor track. Still, I think the cycle you outline was the guiding philosophy, and as you say, it was great for improvement year to year.
The OP doesn't say what situation he's in, but for me, almost 10 years out of college and with probably 30,000+ miles in the bank, I haven't gotten a lot of benefit from going back to 8-12 week periods of long, slow distance, even after peak races. Honestly, I just get bored. Can't reasonably paced and sensibly designed workouts be part of the year-round running plan, especially for post-college/non-championship caliber runners? No, I'm not PRing at my competitive college distances (everything from 800 to 8k), but I continue to improve my times from 10k up. To me, the best training plan is the one that gets me out the door.