Quote Originally Posted by TheDeSade View Post
I have known one submissive who could do it and maintain it for any length of time and she was a professional dancer. And then she could only do it for a few minutes because of the pressure on her diaghram. It is extremely difficult to breathe
Breathing is one of those details that gets ignored by bondage artists. I'm told that even the mild-looking parcel position folded up with knees to chin can be fatal if held for several hours because of pressure on the heart and lungs. And it's claimed that most victims of crucifixion died simply from not being able to breathe with the chest stretched tight.