Some aspects of the Nottingham seat:
Postures range from standard upright sitting to sitting up to 70% of the user’s
Relieves loads on the spine by reinstating the natural lumbar curve.
This chair can take sitters near the 135° thigh-torso angle first described
by Keegan (1960).
This design bypasses limitations associated with reclined sitting such as
greater neck/shoulder loads from increased neck tilt and increased arm loads
and reach as users move back from their work as well as increased eye/neck strain from lowering users relative to their visual target (e.g., computer screen)
It avoids unstable sitting postures associated with forward sloping seat pans.
It can accommodate almost everyone at a single fixed height desk or counter.
It supports working at stations that lack knee clearance (e.g., clean rooms, laboratories)
Can accommodate very small / short users (e.g., 12 inch popliteal heights) with standard pneumatic seat cylinder.
Enables employees who deal with the public (e.g., reception counters) to sit while the public stands – without the corresponding increase in risk of neck/shoulder injury from sitting while the client stands.
It improves reach (especially useful for grocery checkout clerks, clean
rooms, reception counters, postal centers etc.)
It is easier to rise and sit on the chair (useful for users such as pregnant
women and the elderly)
The biomechanical advantage of sitting with an open angle about 120° greatly
facilitates reach and ease of getting up and down.
It helps special populations such as pregnant women (easier to rise and sit;
easier to breath, reduced loads on the spine); people with poor circulation
or foot swelling (improved circulation); people with back and knee injuries;
short users (brings them up to the desk height); musicians (improved breathing)
Review of sit-stand seating by E Nigel Corlett
U. Nottingham's Institute for Occupational Ergonomics.
Research on the Nottingham sit/stand seat: