They actually controlled for exercise and then went on to find that even the slightest movements are helpful.
Here, I think this article actually explains the research better: http://www.nytimes.com/2011/04/17/magazine/mag-17sitting-t.h...
Here, I think this article actually explains the research better: http://www.nytimes.com/2011/04/17/magazine/mag-17sitting-t.h...
From a mental perspective however sometimes getting up and walking around the office or the building helps me focus because there are so many windows on my desktop feeding me information.