Charlie Pendejo said:Dan said:Tom said:When I read this at first I thought "no way, he's got that
backwards". And your method/advice does run counter to an important
rule of thumb for cycling -- you always press the uphills as hard as
you can, for two reasons: (1) you're going much slower, and spending
much more time on the ups, so an N% increase in speed gains more net
time, and (2) at higher speeds, it costs more energy to speed up.
This threshold is fairly sensitive [...] exponential increase in
glycogen consumption as you get into the lactic-acid zone.
I have some minor differences of opinion with Dan, but your post is right
on the money, IMO.
My own experience is that (much like speed walking) it's hard to get the
same heart rate on a really steep down that you can on an up. So in terms
of oxygen debt, maybe it makes sense to push the downs pretty hard. It
also makes sense to accept that you will not quite run the race by even
effort in terms of % HR max, and prepare with that in mind.
It's important to get to the top of the hill in reasonable condition, so you're
not stumbling like a drunk on the downs. Not being fatigued is the main cause
of being good at downhills. I don't agree with "coasting" on the ups, but they
need to be kept under control so you can maintain some intensity on the downs.
I found the Deek quarters a really good workout for cross races -- because the
idea is to maintain a strict discipline on the reps, and not go faster or
slower than the prescribed pace, but push the recoveries as hard as possible.
So even though the reps are higher intensity, in some sense, the recoveries
require more mental effort.
The body has a pretty good tolerance for short term variation in pace -- it's
not unusual for elites to surge to 5k pace in a 10k race. If perfectly even
pacing was that critical, everyone would just ignore the surges. Problem is --
a steep incline makes a huge impact on oxygen demands, it can easily push you
well over about a 1 mile effort, which is disasterous in a 5k race. I don't
think it's so much that the margins are thin as it is that the hills provide
an avenue for going way into oxygen dept.
Cheers,
--
Elflord