Re: CrossFitters vs Decathletes
It might not translate to a better mile and admittedly the improvements are partly due to improved peripheral adaptations, but I'm sure people are improving peripheral adaptations as far as running goes as well. BUT, the point is that people are working on cardio crap and not just getting stronger. The individuals that have been in the Games have been getting better across the board.
I really doubt that strength increases matter much at all on the guy's side. My pull-up strength went from +120 to +190 and it hasn't had much of an affect on my "Fran" time (with all other factors, aside from pressing/squatting strength, which has improved, to be about the same).