They sort of go around in circles on this, but standing a significant part of a work day is the answer, standing and moving around. You don't stand stiff in one spot like a statue, but lift the feet and move the body some, as well as take occasional short walks around the office.
I have always contended the reason women generally live longer than men is that they get up and down, and walk around the house a lot more, GENERALLY.
You mean, like, to have a mobile PC.. like on a sushi counter (moving)?
I think you are correct. I used to take a break every 45 minutes or so to stretch my legs and walk about. Freshened the mind.