I am a paleoanthropologist and work, among other things, on the pelvis
in Neandertals and other early humans. For reasons I would be happy to
explain at greater length if anyone is interested, I need to know something
about the orietation of the pelvis during stance. Most anatomy books
state that the anterior superior iliac spine and top of the pubic symphysis
are on a vertical line during stance, but I am interested in how much variation
there is between living humans in this. I have looked in the literature quite
a bit, but by far the majority of pelvic x-rays are taken with the subject
lying down. Does anyone have any suggestions for me?