May I be so bold as to suggest that….

•  Ergonomic chair design seems to have come to the end of the road without huge success in avoiding LBP.
• A new ‘fix’ is in order and can be effected by the 2T concept.   A ‘paradigm change’?
• This can only be achieved by an understanding of the  biomechanics. It is hoped that this work may provide you with this, a resource describing the requirements for safe design.
• By incorporating the points made in this work,  comfort and ergonomics of both the simplest and most advanced ‘ergonomic’ chairs  should be improved .
• You must not be  misled by ‘comfort’, that treacherous guide  which only turns up truthfully when the bio-mechanics (ergonomics) are fully correct.  See ☛ Comfort→
•  Remediating the ergonomics is more important. Comfort is improved the nearer a full remediation  is approached.  Full remediation = maximum comfort.
• The correct search should be for the Hippocratic “Do no harm”.
• Bio-mechanic adverse designs can be avoided.  Why? Mandal’s Homo sedens→
• There is now no excuse for poorly designed chairs and the conventional mis-advice that is perpetuated.   ☛ Various chairs→
• Some selling points to manufacturers and architects are added if required.
• The comment of Kenichi Ohmae (below) is apposite.