I don't get it: the actual study (which they even link to) appears to draw the exact opposite conclusion: http://ergo.human.cornell.edu/Pub/HFlabReports/EHARep0904.pd... See page 29 especially, and the graphs starting on page 19.
http://www.sjweh.fi/download.php?abstract_id=536&file_nr...
Basically, I don't think this would change my advice to a patient one way or another, and my default advise is "stand more, walk more, please do something besides sit on your butt all day."
For patients with symptomatic atherosclerosis, their beds are made already.