kennyDalglish wrote:
.. MANY people are able to swim for 200m (I say 200 because it's long enough that you can't just "fake it" and sprint the whole way, unlike, say, a 50) at a pace that they'd be VERY happy with for 2000m. So it's not like their stroke is bad. It just BECOMES bad when they get tired. Fitness is the limiter.
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This makes more sense than the other 500 posts in this thread. And I would say it is compounded when instead of doing x200's with appropriate rest, the common triathlete workout is 300 "drill" followed by 2000 yards strait, improving neither form nor fitness.