"Some recent study" - sounds legit.

Seriously though, I agree with you I think. As I understand it, you get the health benefits from moving and fidgeting more, not from just standing like a statue.

Ye olde New York Times article talks a bit about this: http://is.gd/3k4zJp

And that article gave me a fancier way to say fidgeting: Non-Exercise Activity Thermogenes or "NEAT"