I do sit like this on an aeron chair, leaned back as far as it can go. I almost never have back issues, but in this position (exactly like the far right picture in the article) my neck eventually starts to ache.
You should check out the freedom chair with headrest. I have 3 and love them for exactly this reason, though now that my daughter has taken over my home office, I never get to actually use them...
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http://news.bbc.co.uk/1/hi/6187080.stm
Not a link to the source but a decent article surmising the findings.
I do sit like this on an aeron chair, leaned back as far as it can go. I almost never have back issues, but in this position (exactly like the far right picture in the article) my neck eventually starts to ache.
Good for back, bad for neck...
You should check out the freedom chair with headrest. I have 3 and love them for exactly this reason, though now that my daughter has taken over my home office, I never get to actually use them...
http://www.amazon.com/HumanScale-Freedom-Chair-Headrest-Fabr...
That's what I do, except I put my feet on a chair and keep my legs straight.
Trying to sit up straight makes my shoulders hunch up. Slouching lets my shoulders and arms relax. Sitting on a hard unpadded chair is good too.
Pretty interesting article.