Central to the design of good ergonomic seating is the ability to adjust the back support and seat angle of the chair so as to tilt the pelvis and allow the spine to adopt it’s natural “S-shaped” curve. Our bodies are not designed to sit for prolonged periods of time without movement so it is vital to choose a comfortable chair that provides good mobility, reduces pressure points and encourages the spine to adopt that “S-shaped” curve.
The following should be considered when purchasing a work chair for extended periods of sitting:
BACK - Ensure the chair has good lumbar support;
adjustable to your individual height and shape to lessen strain
and improve blood flow.
LEGS - The seat pad should be of suitable dimensions so as
not to constrict the blood flow through the thighs and the back
of the knees.
SITTING POSITION - The best relief is gained from a slightly
reclined sitting position. In this position the weight of
your body is supported by the chair and the angle of your
hip opens by more than 90 degrees, which allows better
blood circulation. The chair follows the body and provides
the platform to move naturally. A mechanism that allows
adjustment of the back and seat movements will enable the
user to create their optimum seating relief.
ARMS - Adjustable armrests provide support to avoid wrist
and shoulder strain and upper back problems.
HEAD - An unsupported head can lead to neck strain and poor
blood flow to the brain. Consider additional support with a
headrest if this is a problem.