They were randomly assigned an order in which to
evaluate three different handle positions. Position 1 was the NCS
experimental (X) position that began with the mock-up in the
starting geometry of the investigated machine. Position 2 was an
extreme (E) starting position for the same apparatus. See the dimensions
for the starting positions X and E in Table 3. Starting with
each position in a randomized order, the subjects adjusted the height
and tilt of the apparatus