mdmarkum. In a Lecture on the Tango Andrew Sinkerson got into the Tango position. He then got one of the class to push down, also to try to lift his arms, They couldn't . He then got them to hold his hand and rotate his body. The body was were moved clockwise and anti-clockwise easily.
John Wood on a tape which I have says imagine a skeleton hanging from a hook in the ceiling . All the bones hanging in their correct position
That might sound like a contradiction. But if you think about it isn't.