[Body proportions and designing of the working sites]

The demands of practical ergonomics often require measurement not only of one body dimension, but a combination of several, since work-environments and consumer goods can often be developed only through a combination of different measurements. An empirical study of 8,000 males, in which 43 body proportions were measured, shows that unexpected disturbances occur in the extreme values of an otherwise symetrical distribution curve when more than two traits are combined. This build-up effect takes on added significance when seen in relation to accident protection.