I have a progressive muscle condition and have been using a wheelchair exclusively for a number of years now. Sure enough, just when I stopped walking at all, my automatic watches stopped self-winding. That's not particularly surprising, of course, but what did surprise me was the small amount of walking necessary to keep them wound. I mean, I got to the point where I was only walking a small amount for strength maintenance in my home with supervision and assistance, and that seemed to work fine.
To keep my automatics running, I either wind them manually every 24-36 hours (I have two Rolexes, a Zenith El Primero, and several with ETA movements), or I use a watch winder overnight, or I hold the watch in my hand and move my hand back and forth on an even lateral plane. That can actually look a bit perverted when sitting in a chair and waiving your hand from above the crotch area out to the knee area and back and forth, LOL, but it does the trick. It didn't occur to me, or my wife, until a friend of ours looked at me with a twinkle in her eye and asked what exactly I was doing (she knew).
I wonder if anyone on this forum has any other suggestions for sedentary folks to keep their autos wound, whether there is a most efficient way to wave or rock an automatic watch around for winding, and of course whether any of these options could damage or wear out a watch sooner than otherwise.
And, because I'm an exhibitionist (no, not that kind!), here's a picture of my brand new purchase from about a week ago. Been eyeing the new Oyster Perpetuals for about a year now and pulled a trigger on the Blue 34mm. I have very small wrists, and though larger watches can look fine, I felt this one fit great. And my wife loves it too, even if she now blushes when I do my autowind routine.