Schwarzenegger Squatting

[Carrera]

Check out the following footage of Arnold S at 28 years of age squatting with Ed Corney. This may take about 5 minutes to load:
http://www.youtube.com/watch?v=v7cvJozA28o
I confess I squat just as hard as this myself (till I puke) and with more or less the same weight as Arnold is using here (more correctly stated 3 years ago as I now use lighter weights).
For cyclists, this kind of exercise may not be productive and Lance Armstrong tended to go with leg-presses. Still, squats are far harder as you can see.

 

[Carrera]

Hmmmmm, kind of odd? Wolfix doesn't squat? Limerickman or C.R. don't squat?
They're said to be good for stage sprinters but can probably limit endurance.