Cross-dominance

Cross-dominance, also known as mixed-handedness, hand confusion, or mixed dominance, is a motor skill manifestation in which a person favors one hand for some tasks and the other hand for others, or a hand and the contralateral leg. For example, a cross-dominant person might write with the right hand and do everything else with the left one, or manage and kick a ball preferentially with the left leg.[1][2]

Overall, being mixed handed seems to result in better performance than being strongly handed for sports such as basketball, ice hockey, and field hockey. What these sports have in common is that they require active body movements and also an ability to respond to either side. The situation is reversed for racquet sports such as tennis. Individuals with crossed hand-eye preference seem to be much better at gymnastics, running, and basketball because of the way in which congruent and crossed sided individuals position their bodies.

— Stanley Coren, The Left-Hander Syndrome, Chapter 3
Not to be confused with Ambidexterity.

It can also refer to mixed laterality, which refers to a person favoring eyes, ears, feet, or hands on one side of the body. A person who is cross-dominant can also be stronger on the opposite side of the body that they favor; for example, a right-handed person can be stronger on the left side. Cross-dominance can often be a problem when shooting or in activities that require aim, although athletes can still achieve success in sports that require accuracy, like passing in American football and shooting in basketball.

In baseball

In baseball a left-handed batter is about two steps closer to first base than a right-handed batter, one important advantage.[3] Because curveballs and sliders – the most commonly used breaking pitches in the game – curve in the direction of a pitcher's non-throwing hand, a batter who bats opposite the pitcher's throwing hand enjoys an advantage. Since most pitchers are right-handed, left-handed batters enjoy a second advantage over their right-handed counterparts.[3] However, right-handed throwing is more valuable in the field. Every fielding position can be played by a right-handed thrower, although left-handers are considered more valuable pitchers and have a slight advantage at first base owing to the fact that they do not have to turn around to place their foot on first when stretching to catch a throw. Conversely, left-handed throwers are almost completely absent at the highest level at the other infield positions and at catcher.[4][5] Switch hitting exists so a batter can hit from the side opposite every pitcher's throwing arm, but it has gained some criticism because a batter will always be more dominant from one side of the plate than the other; the switch hitter may be less reliable from one side. So, many baseball players are trained to be simply cross-dominant, batting solely left-handed and throwing solely right-handed.[6] There are a few position players, such as Rickey Henderson and Cleon Jones, who bat right and throw left; but this serves as a substantial disadvantage. Rickey Henderson only did that because he was taught to bat right-handed by right-handed teammates.[7]

In snooker

In snooker, swapping the cue from one hand to the other in order to gain easy access to an oblique shot was long thought to be disrespectful, though more recently it has come to be accepted, especially since Ronnie O'Sullivan has dominated the world game and often escaped from snookers by switching to a left-handed action.[8] There are also several players, most notably Barry Hawkins, who play with the opposite hand of their dominant one.

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See also

References
  1. Bache, M.A.B.; Naranjo, J. (2014). "Lateralidad y rendimiento deportivo". Arch. Med. Dep. 31 (161): 200–204. ISSN 0212-8799.
  2. http://www.rightleftrightwrong.com/what.html
  3. The advantage of batting left handed
  4. Walsh, John (2006-04-06). "Top 10 left-handed catchers for 2006". The Hardball Times. Retrieved 2018-08-04.
  5. Schwarz, Alan (2009-08-15). "Left-handed and left out". New York Times. Retrieved 2018-08-04.
  6. Article on the advantage of cross-dominance in baseball, including statistics.
  7. Bats: Right Throws: Left
  8. Sportsmail (25 July 2011). "O'Sullivan takes a left turn". Daily Mail. London. Retrieved 3 November 2011.

 This article incorporates text from a publication now in the public domain: Chambers, Ephraim, ed. (1728). "article name needed". Cyclopædia, or an Universal Dictionary of Arts and Sciences (first ed.). James and John Knapton, et al.

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