While free in space, a Performer can rotate in just about every conceivable manner. The 2014 USPA Skydiver's Competiton Manual, Chapter Six for the Artistic Events (Freestyle Skydiving and Freeflying) includes terminology for describing ways to rotate in freefall (or the wind tunnel).
Regardless of the body/hip position and orientation, a Performer can rotate in any direction. The body can be in a layout position, stag position, split position or any other body position.
Rotational movement can be analyzed in reference to any of the three axes of the body, (Body Head-Tail Axis, Body Front-Back Axis, and Body Left-Right Axis) and the two axes with respect to the relative wind (Vertical Axis and Horizontal Axis). By combining each of the three body axes with each of the two axes of the relative wind, six different types of basic rotations are possible.
To explore rotations in greater depth, please select each of the options from the menu above in sequential order and read details.
Note that all of these rotation types are possible regardless of the freefall (or wind tunnel) disicpline (style, artistic event, formation skydiving or any yet to be invented discipline).