Replacing the Office Chair with an Exercise Ball
baron.vc
baron.vc
As for the concerns about being made fun of or judged or whatever, mentioned several places in this discussion, someone's judging you says more about them than it does you.
And, yes, they do tend to have a resonant effect on certain reverberative sounds...
Also an issue with Aeron's "mesh"
http://www.tbs.com/video/index/#/all-video/shows/the-office/...
Like anything, they can be misused, and it's a matter of personal preference. I also have a laptop that doesn't fit very well on my computer desk, so when I'm on it, I'm usually lounging in a recliner or on the sofa at home.
The thing I love most about the ball is that I can get up, roll it back a bit, sit back down on it, then do a full-body arched-back stretch, then roll back up onto the ball, scoot it up to the desk, and keep working. I find myself doing that at least once an hour, and it always brings a boost. At my office (no balls allowed... heh) I end up having to run up and down a flight of stairs or do something else to get that boost. It takes a lot less time with an exercise ball, and I can keep focused.
You need two things to keep with it for more than a few days: a good anti-fatigue surface to stand on, and a taller-than-average chair so that you can alternate sitting and standing.
however, i do like the idea of alternative desk arrangements though. i've seen several people with a desk that can be lifted up so that you can stand and work when you want. then there's the treadmill desks which are pretty cool.
I will forever associate exercise-ball chairs with the hilarious moment when, in the middle of one of Leo Laporte's podcasts, there was this BANG sound off-mic and he went off the air for a few seconds. Then we heard his voice, a bit distant, as he explained that he was picking himself up off the floor because his chair had just exploded.
Of course, if you land wrong after such an incident it won't be quite so funny.
At home, I switch between an office chair and a piano bench. You don't need a backless chair to sit upright and not slouch. However, an unstable surface (like a chair with rollers, or an exercise ball) can be distracting and requires more energy to maintain an upright posture.
So: a bench or a stable chair for posture, and an aeron or similar when your back gets tired. An exercise ball to mix it up would be cool too.
It's also important to get a ball of the right size (they typically are available in 10cm increments, with 55-75cm being the more common sizes). Look for charts online for sizing info, and then make sure it is inflated enough that when you're sitting on it the angle of your knees is 90 degrees.
While this change has helped my posture, increased my core strength and more, I think my next change is going to be for a treadmill desk so that I can increase the number of calories I burn throughout the day.
That being said, since it was at home I was never on it as long as I would have been at work.
Personally I found that I slouched MORE when using the ball because I could no longer lean back against a backrest. So when I got tired towards the end of the day I'd lean on the table instead. Result: Upper back pain. The other thing that annoyed me was being unable to shift my legs around at all - they BOTH have to be flat on the floor in front of you. No crossing one leg or changing the angle of you knee joints or anything like that.