This past Friday I had the privilege of attending the Day of Distance Coaching Clinic at Villanova. It is put on by Marcus O’Sullivan who is a four-time Olympian and has run sub-4 minutes in the mile 101 times.
The reason I was looking forward to attending this year was keynote speaker Mike Smith, who is the Director of Cross Country and Track at Northern Arizona University, and in my opinion is hands down one of the best coachers and thinkers in the country.
I saw Mike speak and attended back-to-back sessions in the afternoon given by Marcus O’Sullivan. I plan to write more in depth about many of the ideas presented, but I want to summarize the key theme that were consistent throughout the day.
The Importance of the Aerobic Metabolism
This was the major thesis of the day for sure - and this is coming from coaches whose focus is for events mostly 5000 meters and shorter for most of the year. Both Mike and Marcus constantly came back to the idea of of training the aerobic system though tempo and lactate threshold workouts week in and week out. I think there is also tremendous value in the 30-35 minute pace range (critical velocity) which may be a touch above threshold in the right doses. The idea is you want to keep pushing the velocity at which you can stay aerobic to faster and faster paces. The way you do this is training just above, below, and at your anaerobic threshold.
The key takeaway from all of this is just because you can, doesn’t mean you should. Running faster than prescribed workout paces or coaches assigning reps that are too long runs the risk of making a workout that should be primarily aerobic become anaerobic. There are three major things that cause the aerobic system to deteriorate:
Racing and hard, fast workouts
Racing too frequently
Not running at all
There is a time and a place for fast workouts, but Mike Smith says NAU does a big VO2 session maybe two or three times per year. A lot of coaches do these sessions weekly for most of the year and arguably the best coach in the country is doing them twice per year. It’s sexy, but puts a huge tax on the aerobic metabolism, causes lingering fatigue, sickness, anemia, and poor performances. The 10k is estimated to be 95% aerobic, the half-marathon 98%, and the marathon near 99% aerobic. Pushing too hard is compromising the system that makes all the difference in the world in these longer efforts.
There’s a lot more to dig into, but hearing them talk affirmed my belief in running lots and lots of aerobic workouts and trying to be disciplined enough to not push if you do not have to. Keeping things under control is going to give you the best chance to race well and finish strong consistently.