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Old March 29th 15, 07:42 PM posted to rec.skiing.nordic
Terje Mathisen[_3_]
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Default Training polarization (Stephen Seiler)

On Sun, 29 Mar 2015 06:16:39 -0700 (PDT)


Thanks for posting this. I found it quite interesting. My performance
has suffered in the past couple of years, and I think I've fallen
into the black hole, particularly when I look at results of older
guys who are really kicking my arse.

I wonder if a Birkie pin will help my work career. I'd still like to
do that race.

Hi Jay,
During my annual perusal of Birkie results, I saw you were still racing
the Birkie and up there towards the top. What would a Birkie be
without you...

While the basic message of the research is not new to many x-c skiers
who pay attention to this sort of training info, there's still a lot of
resistance and outright denial to it, especially in the States. No
pain, no gain has a lot of adherents (one well known one wouldn't even
look at the video). What caught my attention above all in Seilor's talk
was that the bulk of high intensity training is being done at L4, not
L3, contrary to most of what I've heard over the years.


Can you even call it high intensity at L3?

Personally I'm still running ~75 competitions/year (orienteering), they
constitute at least 90% of my high intensity training in season, and a
large part (i.e. once a week or a little less) even in winter.

At least for me I tend to run a lot of competitions (they normally last
around 45 minutes) with an average heart rate in the 90-92% of max
range, this is supposedly just on the border between L4 and L5.

(170+ with a 185 max measured during a max O2 test.)

When I'm out of shape I can't average more than 155 or so.

BTW, I remember meeting Jay W when we visited Jay T for the Masters
World Orienteering Champs in Minnesota around 1995, nice that he's still
doing well!


- Terje.Mathisen at
"almost all programming can be viewed as an exercise in caching"