The Interdimensional Traveler: A Full Body Character Design - ZBrush Creature Design: Creating Dynamic Concept Imagery for Film and Games - page 122

In the process of stretching the legs and torso, the midline, or groin, of the figure has moved out of place.
There is too much distance between it and the hips. Using the Move brush, I shift it back up. This has the
effect of also lengthening the legs a bit more ( Figure 3-21 ) .
Figure 3-20: Narrowing the waist and sharpening the bony landmarks of the hips and torso. By removing
any soft forms, we add a more attenuated and disturbing feel to the anatomy.
Figure 3-21: Shifting the groin up lengthens the legs. In the figure on the left, you see the original groin
position. In the figure on the right, you can see the effect of raising this point.