Some time ago I saw a person with a waist like this on TV... I
think it was one of those "freaky shit people do"
documentaries...and over ten year that person had worn increasingly
small girdle/corset things to make their waist smaller and
smaller....
I remember them having a very thin almost bony frame, but their
waist was impossibly small just like this lady.
And they studied that person's internal state; organs which were
all squished into the wrong places, the diaphragm was
damaged, breathing shallow, circulation compromised, and
they were not able to walk/stand for nearly as long as someone who
had not altered their body so drastically...
It is akin to the lotus foot bindings... you wrap something up
enough over a long enough period of time and the body conforms...
even when it is unnatural.