An interesting side note:
My 3 1/2 year old daughter is in gymnastics classes, and I got into a long discussion with one of the higher level coaches at the club about how his girls have gotten fatter over the last five years.
He blames soft drinks, fast food, and TV, but after we spoke for a bit, it turned out that ~5 years ago, he coached his girls an average of 15 hours a week, and now it's down to about 8.
When I pointed out that discrepancy, he looked a bit pained.
Nice guy but SERIOUSLY out of the loop regarding anything but traditional gymnastics conditioning techniques. Not that those are ineffective...but take away an average of 7 hours of training a week, and you've got to get smarter.