Here's a really pessimistic take on technology and sports in the Olympics:

World records will be broken at this year's Olympic Games, but I'm just not as excited as I used to be as a child. Why? With many recent technological developments in sports, it's hard to separate what's due to increased athleticism from what's due to science.

I see the author's point even if I think it's naive and false. But what I found really interesting was this revelation:

Another example from the Sydney games that raises the science versus athleticism question is Naoko Takahashi's gold-medal marathon win. Takahashi, the first women's marathon winner from Japan, drank juice extracted from hornets' stomachs before and during the race. Prior research done on mice showed a marked increase in endurance from the juice. Since hornet juice is natural, it is not classified as a banned substance, and Takahashi has told the press that the juice was a "crucial factor" in her win.