Discussion
The aim of this paper was to illustrate the bottlenecks with existing guidelines for pregnant women rather than to generate a new guideline for the pregnant condition.
Although design may deviate to some extent from the optimal design (Siewertsen and Molenbroek, 1990),
really bad fit should be prevented because of its possible adverse effects on comfort, physical well-being
and performance (McCormick and Sanders, 1982; Green and Briggs, 1989; Ayoub, 1990). Special spatial
requirements for pregnant women will mainly be relevant between the third and the ninth month of
pregnancy (Culver and Viano, 1990).