Totalswimm <
[email protected]> wrote:
>The dominant athletes in triathlon - which is more physically demanding than swimming - and
>marathon running are commonly in their 30s. I think the main reason for swimmers not being able to
>commonly sustain excellent into their 30s are mainly social and cultural. Many coaches adopt an
>authoritarian, rather than collaborative, style, under which most adult athletes would chafe. And
>the intensive early training of age group swimmers is radically different from what marathon runner
>and triathletes would have been doing in their preteens and early/mid teens.
VO2Max holds pretty constant in the 20s up to the very early 30s, and then begins an inevitable
decline. At the puny distances done in olympic swimming, I don't think superior technique can make
up for this. The longest event is the 1500, right? That's not even 15 minutes long. If open water
swimming came in - I imagine it would be a 1500 and a 5000, maybe a 10k - then you'd see 'older'
olympians.
Marathons are right at the threshhold that one can do on blood sugar alone, and IMs are about the
balance of pushing your LT but not so far that you can't take in food. Both require knowing your
body very well, and I think that requires experience of years of competing. Here, technique can be
worth a lot, and does compensate for any lost max potential.
Chris McCormack is becoming an interesting figure to watch on this. He's an absolute killer at the
olympic distance (non drafting) event, but has blown up in two runs at Hawaii and not gotten the
same result as he did in winning the Australian IM. The performance envelope that they race at for
8.5 hours is a very precarious one.
--
Jason O'Rourke www.jor.com