Christos said:One should probably warm up before the race, but the question is
1) For how long
2) At what intensity
3) How much time before the race
I guess the answer depends on:
a) Race duration
b) Level of preparation
c) Intended effort level at the race
[...]
Does there exist an authoritative breakdown of
warmup tactics depending on those 3 variables?
No, not a one-size-fits-all prescription anyway - it's another case of
too many variables for one simple formula to be optimal for all.
_Daniels' Running Formula_ has the best section on this of any books
I've seen - he recognizes that as individuals we'll have different
optimal practices, and suggests a number of variations from steady
jogging to folding in some strides or bursts of tempo or race pace,
along with suggested timing relative to the race start.
A few principles I like (but don't always follow, especially since I
tend to be running late for relatively low-priority early morning
races):
- For a marathon (or presumably longer) warmup would be really minimal
since you don't want to waste glycogen and will be running slower
anyhow.
- The shorter and faster you'll be running, the more important the
warmup.
- Bare minimum of 15-20 minutes jogging to get the legs and metabolism
going. Time permitting, I like 40 minutes. Dan likes to say that it
takes about 40 minutes for the fat burning part of your energy system
to come fully online, or something like that; I don't know much about
the physiology but have indeed found that by around 40 minutes into a
run I often seem notably more warmed up and running faster with less
effort.
Of course your training and the race distance comes into play here.
If you've gotten to the point where you can run 60 minutes at training
pace and not much more, probably best not to warm up 40 minutes for a
race you anticipate taking another 40.
- It's generally preferable to be warming up until as close as
possible to the start.
- I like to throw in about 6 or 8 strides or "accelerations" or
whatever - 20 second bursts of speed. Wait until at least 5-10
minutes into your warmup jog so you're loosened up a little. Then the
first couple strides are notably faster than your jogging, but nowhere
near all out. Gradually increase the speed of each subsequent burst
until they're somewhere near top speed - top speed, that is, that you
can run while remaining very relaxed and natural.
If you're going to do this sort of thing for a race warmup, do it in
training first. In fact I'd highly recommend doing strides like this
in training; maybe a few more, like 8 to 12, on a regular basis
anyway. Even - especially - if you're in a phase of just building
base miles without faster workouts. Just don't lose sight of your
goal: to run fast but always relaxed. If you tense up, you're doing
it wrong and back off and relax.