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Originally Posted by Ramrod
There are no hard and fast rules. It all depends on the person and what/how bad their complaint is......
One thing.......if you get low back pain with sitting then the lumbar/sacral ligaments deform inelastically (exhibit 'creep') after 8 minutes. So if you are sitting 'badly' the rot sets in after as little as 8 minutes 
......so in a case of low back pain it might be a good idea to initially set a timer to ping after about 5 minutes to remind you to sit properly/straighten up.
edit--eye strain wise (from personal experience) a tft is no strain on the eyes at all.......but maby ask an optitian for a second opinion on that |
Thanks for that
I was getting worried that I didn't get much eye strain on my tft
I do get a bit of back pain on my chair upstairs - but I always thought it was 'cos it wasn't a good chair (it's a fancy leather one), maybe I should sit up instead of slouching in it then