OK, I've got an idea that'll make a Million Dollars. Since the VA has a M.O.V.E. program, perhaps they could have, integrated into it, a program to perform aerobic exercise in the sitting position. And maybe they can repeat the good results they have obtained for those who walk in the population that sits.
It'll be in all the textbooks.
A search of Google isn't turning up much for aerobic and "sitting position."