Starling wrote:

“Obama curl 32kg ten times? Not with biceps like the ones in this shirtless picture of him in the WashPo from last year.”

Maybe.

No person with even a normal amount of narcissism goes into a gym, needing to get some relief from a stressful schedule, heads to the free weights, and does a few curls. You head to the rowing machine, the treadmill, the ellipticals, etc. I suspect Sen. Obama could do the 32kg curl, but he would have practiced for a long time to be ready for the photo op. No Jimmy Carter jogging identity for him, and especially not a treadmill!

Good comment by Programmer, above.