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Turn (dance and gymnastics)
In dance and gymnastics, a turn is a rotation of the body about the vertical axis. It is usually a complete rotation of the body, although quarter (90°) and half (180°) turns are possible for some types of turns. Multiple, consecutive turns are typically named according to the number of 360° rotations (e.g., ''double'' or ''triple'' turn).
There are many types of turns, which are differentiated by a number of factors. The performer may be supported by one or both legs or be airborne during a turn. When supported by one leg, that leg is known as the ''supporting'' leg and the other as the ''free'', ''raised'', or ''working'' leg. During airborne turns, the first leg to leave the floor is the ''leading'' leg. Some turns can be executed in either of two directions. In ballet, a turn in the direction of the raised leg is said to be ''en dehors'' whereas a turn in the opposite direction is ''en dedans''. Trunk, arm and head positions can vary, and in turns with one supporting leg, the free leg may be straight or bent. Turns can begin in various ways as well. For example, ballet turns may begin by rising to ''relevé'' (supported on the ball of the foot) or by stepping directly onto relevé.
In some dance genres and in Labanotation, a turn in which the performer rotates on a pivot point without traveling is known as a pivot.〔Ann Hutchinson (2005) "Labanotation: The System of Analyzing and Recording Movement", ISBN 0-415-96561-6, Chapter 8: "Turns", section "Pivot Turns〕 Pivots may be performed on one or on both feet; the latter is sometimes called a ''twist turn''.
==Technique==
Spotting is a technique that is often used when executing turns, in which a performer executes a periodic, rapid rotation of the head that serves to fix the performer's gaze on a single spot, thus giving the impression that the head is always facing forward. Spotting prevents dizziness by allowing the head to remain stable during most of the turn. This helps the performer maintain balance and, when executing traveling turns such as tours chaînés and piques, it helps the performer control the direction of travel.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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