Editing Trampolining (section)

==Basic shapes==
In competitions, moves must usually be performed in one of the following 3 basic shapes:

{| class="wikitable"
|-
!Shape
!Method
|-
|Tucked
| with knees clasped to the chest by hands
|-
|Piked
|with hands touching your feet and both arms and legs straight
|-
|Straight
|body in a straight position with legs together, toes pointed, and arms by the sides
|}

A fourth 'shape', known as 'puck' because it appears to be a hybrid of pike and tuck, is often used in multiple twisting somersaults—it is typically used in place of a 'tuck' and in the competition would normally be judged as an open tuck shape.

A straddle or straddled pike is a variant of a pike with arms and legs spread wide and is only recognized as a move as a shaped jump and not in any somersault moves.

Rotation is performed about the body's longitudinal and lateral axes, producing twists and somersaults respectively. Twists are done in multiples of a half and somersaults in multiples of a quarter. For example, a ''barani ball out'' move consists of a take-off from the back followed by a tucked 1¼&nbsp; front somersault combined with a ½&nbsp; twist, to land on feet. Rotation around the dorso-ventral axis is also possible (producing side-somersaults and "turntables"), but these are not generally considered to be valid moves within competitions and carry no 'tariff' for difficulty.

Trampoline skills can be written in FIG (Federation Internationale de Gymnastique) shorthand. FIG shorthand consists of one digit signifying the number of quarter rotations, followed by digits representing the number of half twists in each somersault, and a symbol representing the position of the skill. "/" represents a straight position, "<" represents a pike position, and "ο" represents a tuck position. For example, 42/ is a back somersault with a full twist in the straight position, 800ο is a double back somersault with no twists in the tuck position, and 821/ is a double somersault that has a full twist in the first full somersault and a half twist in the second full somersault while remaining in a straight position.<ref name="Trampoline Sports Technical Handbook 2012">{{cite web |title=Gymnastics NSW Trampoline Sports Technical Handbbok |url=http://www.gymnsw.org.au/site/gymnastics/nsw/downloads/Gymsports/TRP/2012/Technical%20Info/2012%20Technical%20Handbook.pdf |work=Handbook |publisher=Gymnastics NSW |access-date=18 November 2013 |archive-url=https://web.archive.org/web/20120322202523/http://www.gymnsw.org.au/site/gymnastics/nsw/downloads/Gymsports/TRP/2012/Technical%20Info/2012%20Technical%20Handbook.pdf |archive-date=22 March 2012 |url-status=dead }}</ref>