I noticed the model's breast and hair .. and these indicate that gravity is acting downwards?
As an engineer and assistant gymnastic instructor I am interested in this...
You can achieve "zero gravity" by using a shutter-beam and trampoline, and photographing subjects in mid-air, but that would not seem to be the case here, unless the breasts and hair are taken in a separate shot.
It looks as if she is supported under her legs, buttocks or back, taking several pictures so that no part of the body looks compressed by the support... I think that in one shot she is supported under her buttocks, and in another she is supported under her legs and back?
¿Perhaps "she" is a dummy, and the supporting plumbing is inserted into the lower abdomen via an orifice between her legs? (The centre of gravity of the human body is near the pubic bone, so it would be a logical location for support).
I have been levitating young gymnasts (hands on) arm's length above my head in the "flying angel" lift seen sometimes on television on dance programs ( I have been doing this "bottoms up" but you can support ladies in positions similar to what we see here.
There is a narrow age range where I can find gymnast good enough to pose and balance, but light enough for me to lift... the theory is that I do it with bigger girls each week! Winning the confidence of the young ladies is often the hard part!
"Luke, I am of course guessing but Michael E has model lying on their sides and he shoots from above. That is just by looking at their flexed muscles. Yes, I confess I am one of the two guys who is looking @ their calves."
Sean, unfortunately your suggestion that I am levitating above the model is incorrect:) The models are above the ground exactly in the position as shown on each photograph. A trip to the Home Depot plumbing department and a few hours of assembly of the support cage made this possible, and, above all, the bravery of the models to participate in these flying matters.