Extended Wedge
A close relation of the Door Wedge, but the space between the walls is wider and the legs must be stretched out straight, with the back wedged against the wall.
1
Stand in a corridor approximately one metre wide.
2
Spread arms wide and place hands on opposite walls at shoulder height.
3
Using arms for the initial push, jump upwards and outwards, locking feet against opposite walls so as to sustain an elevated position.
4
Twist body towards wall, supporting bent leg, so back faces wall and both hands are on wall behind back.
5
Carefully press back flat against wall and position both feet on opposing wall, to create a wedge effect.
6
Shift posterior slightly downwards and feet slightly upwards. Straighten legs as much as possible so that they are parallel to the floor.
Notes
If performing in a corridor where you could be obstructing a door, take extra care that your whereabouts are known.