Quoted message said:Anyone experienced a sudden drop in your MPM of a full minute, minute and a half, or two minutes,
over distances of 5K to 10K?
Were you able to maintain that new speed with subsequent runs?
Any ideas as to what enabled you to make the sudden breakthrough?
The magnitude of the change here seems a bit large but the effect is more common than perhaps many
realize. The path to performance improvement is not a straight line: There are training plateaus.
You can be in the same performance area for a lengthy time, and then, suddenly, something breaks,
and you make a sharp improvement--until you hit the next plateau.
The cause of breaking out of a plateau is often a change in the type or quality of training. This
change generally results in an improvement that can be maintained over time. If you keep doing the
same thing for more than 12 weeks at a time, further gains either moderate or disappear entirely,
and you have to do something different or add something different to your training to keep
improving.
One thing to be aware of, though, is the effect of tapering. If you suddenly cut back your training
for a couple of weeks, you can get a performance improvement as large as 5% (if you do everything
right), which for a 20 minute 5K runner can be a minute or so. This type of improvement is due to a
short-term increase in muscular strength (while the cut in volume hasn't hit you in aerobic capacity
yet). This type of performance improvement is a peak and is not a long term improvement that can be
maintained.
Lyndon "Speed Kills...It kills those that don't have it!" --US Olympic Track Coach Brooks Johnson