on Aug 13, 2010:
Amy-Thanks for the flat seat solution. I've traded out many different task chairs at my desk and some really mess me up. I can, in fact, reupholster one to have a diamond tufted seat. I have a very retro Steelcase task chair in my studio now. It needs a new seat so now I know what I'll do. As I found out, sitting for very long periods of time is just not good for the body, no matter what chair you have.
on Aug 12, 2010:
If you notice, both of the Herman Miller chairs have flat seats, and that's a major reason that the chairs are so comfortable. The curved, scooped out seats throw the pelvis out of proper alignment causing the lumbar spine to be out of proper alignment.
Hey, here's a challenge for you! Find an old office chair that needs to be recovered and give the seat a nice firm, flat, diamond tufted upholstered makeover. I know you can do it!!