Twist/Twisting: An athlete performing a rotation around their body’s vertical axis. (vertical axis=head to toe axis).
Twisting tumbling skills involve hip-over-head rotation around athlete’s vertical axis.
Twisting in stunts is counted on two separate axes, the vertical and horizontal axis. Simultaneous twisting on both axis will be counted separately and not cumulatively. The degree of twist is determined by the total cumulative rotation of the top person’s hips in relation to the performing surface (Once a stunt is hit, and the top person shows a clear and definite stop, they may continue to walk the stunt in additional rotation). A new twisting transition begins with a dip by the bases and/or change in direction of the twisting rotation.
(The definitions used in the videos are different, but the example shown in the videos remain useful)