Re: Paradigm Shifts
- From: "Brian Foster" <brianfoster@xxxxxxxxxxxxxx>
- Date: Mon, 31 Jul 2006 16:57:32 GMT
Can you explain what you mean by "clearing the bubbles" a little more?
Thanks
<ekurth@xxxxxxxxxxxx> wrote in message
news:1154323738.477789.149480@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Like a lot of parents, my kid plays on a soccer team. I had an
interesting conversation with one of the Dads. I had heard he was "a
swimmer" so I was keen to talk to him. Turns out he was quite a
swimmer - 100m in 50 seconds in 1988. The USA sent 9 men on the relay
teams, two complete teams and one alternate. He was the second
alternate :(.
Anyways, a number of things he said were quite interesting. He said
they were using a lot of underwater video to look at strokes, and the
coaches stressed "clearing the bubbles". That's exactly what Rowdy
Gaines is saying of Janet Evans in video I have. It took me awhile to
piece the whole thing together, but I think I did. See at that time,
the lift theory of human propulsion was at the forefront. Hand like an
airplane wing, or the sail on a boat. For that kind of propulsion,
"lift" is created when there is a boundary layer which is in contact
with the surface. So lack of bubbles meant a good boundary layer and
thus good propulsion.
I told him all that had fallen by the wayside. Even some of the men
who proposed it (e.g. Maglischo) had come around to the drag theory of
propulsion. Which is simply hand like a paddle. He was pretty
shocked. All that video chasing the wrong thing. But I reassured him
that it probably didn't matter. All the fancy theories aside, if you
copy Matt Biondi, you're probably not going to be too far off.
He had another interesting story. He swam 47 seconds for 100 yards for
a long time. Then one day on a kickboard he broke one minute for 100
yards! He had only been using a broken kick rhthym in his stroke, but
the coach converted him to a 6 beat kick. He was at 43 seconds in a
short time. How did he swim so long without a coach realizing what a
great kicker he was? He said the coach converted him to a "16 beat
kick". I assured him it was a 6-beat. How come some of the elite
swimmers seem a bit oblivious to what they are doing, but here on the
user group we study everything they are doing.
Anyways, one final quote about a pradigm shift, this one from Bill
Rose, who coaches the Mission Viejo Natadores. According to him, the
over-emphasis on balance and being slippery in the water is at an end.
Bill: "I'm thinking...When I came back in the early 1990s to the
sports, I thought that the 1980s led us in a funny direction where
science took us in some misdirection. We had a false impression that
whoever worked the least could get the most. Now, it's coming back to
where it's acceptable to train hard like we did in the 1970s"
Ah yes, training hard. The one invariant. "Clearing the bubbles" is
gone, and kicking gently across the pool in a side-lying balance
position may soon follow it.
Eric
.
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