Advanced Contortion Moves: Push Up - as part of the expert series by GeoBeats. Higher-level contortion takes the basic movements of contortion and takes them to a higher level. One of the classic high-level contortion tricks is called "push up" which starts with a pretzel. From the pretzel, you hook your feet behind your armpits, and then you push up and do a handstand. It is a very difficult skill, taking a lot of control and flexibility and strength.