[tzs]

If those are the studies I'm thinking of, they looked at people who sit continuously for several hours. Bad things happen to them, even if they exercise regularly when not sitting.

Best is to sit in a good ergonomic position, and about every 30 minutes get up and move around for a couple of minutes. Take a walk around the office, or go get a drink or something--the key is to get moving.

Do that and you'll beat both the long sitters and the long standers.