*&HUadfp9iu24t4-0 wrote:
The OP sets up a straw man that doesn't really exist.
Over the last 10 years through several parts of youth and HS track and XC, my kid's coaches have done tons of "speed" stuff. They pretty much have to. The vast majority of kids today just don't have the attention span to run for even 20 minutes without getting "bored" and wanting to switch sports.
Even Runner's World stresses stride efficiency.
The real questions this thread brings up are how many different types of runners are there? Sprinters, middle distance and long distance for example. Leading to the question, how much time should each spend running really fast?
What about true marathoners? Does fast running with long rest really do anything for slow twitch fibers that 5k pace won't?
Really? Are all of the coaches doing exactly what I´ve preached afterall? It´s very easy to believe that there are plenty of coaches that makes the kids to do tons of "speed" stuff, but like I said the "speed stuff" often SEEMS to consist the paces at or close to the middle distance pace, not pure alactic-anaerobic sprint paces. This is the impression that I have got from letsrun.com. I´m sure there are exceptions, but I haven´t seen it on these boards that often.
Could you elaborate what kind of sessions exactly you mean by the " tons of speed stuff"?
Stride efficiency is only a one thing behind importance of SPEED training, the other is the anaerobic capacity. Without a good CAPACITY you cannot build a good POWER. How good your anaerobic capacity has to be? If you´re a marathoner it´s not that important of course, but there are opinions (Olbrecht) that focusing only to aerobic capacity development you can end up being overtrained more easily. And yes, the marathoner´s stride efficiency, running posture etc. definitely will improve by the speed training, I believe you miss something if you completely avoid the paces faster than 5k. At the same time you create stronger, more elastic muscles, bones and joints to avoid injuries and muscle cramps.
And yes, everyone is different, the type you naturally are, plays a big part what you should do and how frequently. Your body will chance as you get older, and your training should also change to direction that you still can fulfill your main events needs.