I need some advice re back strain: [View all]

I work from home and and on the computer constantly. I'm working on getting up and moving around every 45 minutes. (It's hard to do when I am on a roll and deep concentrating!)

My problem is that I find myself sliding down in my chair, which puts a strain on my back just above the lumbar region. I have the chair cranked down as far as it will go so my feet are on the floor. i have a quilt wadded up between me and the chair back so I am sitting back. I think the problem is that the seat is still too deep; that I end up inching forward and sliding down. I'm working from a laptop so I am looking down at about a 30 degree angle from where I sit.