Back pain is reported as one of the main causes
of absence from office work. Office furnishing, in particular
office chairs, can help overcoming this problem, improving
health and comfort for workers with a correct ergonomic
approach. An experimental study was conducted on six
different office chairs that were examined and then tested by
twelve adult subjects. The effect of chair ergonomics on the
perceived level of comfort was investigated by means of
objective data obtained by a BPMS (Body Pressure
Measurement System) and subjective evaluations were drawn
from a questionnaire. Particular attention was paid to the
calibration and equilibration of the measurement system. The
results point out interesting and unexpected correlations
between subjective and objective evaluations of the chairs.
