Looking at the spine

Moving on from the 3D scans I had taken if we remove all the skin and muscle so we just have the skeleton left, it is very easy to see the profile of the back when it is straight and this is the profile I want to mimic in a chair. The current folding chairs that are on the market have one piece of back support that for many doesn’t provide a great deal of support for the back. There is no lumbar support and no upper back support so people tend to lean to far back and their lumbar is forced down. Flexibility of the back is also an issue, all chairs should have a slight give in the support.

In each of the images bellow you can see the profile of the spine and if you look at the red line in the first picture I have shown the profile that I am talking about.