Translated title of the contribution: [Autom. eng. transl.] DESTRORSO OR MANCINO

Francesco Casolo, Paola Vago, Nicola Lovecchio, Matteo Merati, Enrico Pasqualotto

Research output: Contribution to journalArticlepeer-review


[Autom. eng. transl.] Introduction Before undertaking new motor learning as well as before engaging in two-handed challenges (tennis, fencing, boxing ...) it is interesting and important to explore the lateral dominance - laterality - of the contender. The discovery of the adversary passes both from the knowledge of his abilities and from that of his resources because it is now recognized, especially by practitioners, the presence of a certain gift associated with the right-handed or left-handed nature of the subjects. It is difficult to say whether this peculiarity leads or makes the stronger and more skillful leftist athlete of the right opponent a priori, but certainly a dose of action recalculation and a redefinition of the strategies is necessary in front of an opponent with left lateral dominance. In the past esoterical legacies have led - even in the recent past - to diabolical beliefs or stereotypes towards the use of the left hand or simply towards the primordial definition of the left laterality. In fact the Latinism "mancus" means deficient or mutilated that is something that does not follow the canons of normality recognized by most, but as always the experience wins over theories so that among the greatest geniuses, artists, musicians, philosophers and sportsmen of humanity include left-handed subjects. Examples are Einstein, Leonardo da Vinci, Michelangelo, Alexander the Great, Napoleon, Raphael, Picasso, Beethoven, Jimi Hendrix, Aristotle, Kant, Maradona, Ginobili, Bird, Nadal, Ivanisevic, McEnroe, Navratilova, Seles, Bianchedi, Valentino Rossi , Van Persie, Pele and the very current Messi. Science The 'scientific' redemption, in addition to the social redemption of the left side, was also achieved thanks to neurophysiological studies - including Roger Sperry, Nobel in 1981 - which discovered the division of our brain into two hemispheres that specifically govern different functions. And so it was possible to discover that the logical / linguistic / analytical functions are the responsibility of the left hemisphere while the visual / spatial / imaginative / musical ones of the right one. On this stock one of the most intense researchers - M. Annett; School of Psychology, University of Leicester, UK - on the subject has conducted a series of checks on the determination, development, modification and consistency of personal laterality (especially in the upper limbs) [1]. Studies on homozygous twins, on isolated groups of people, on samples of different nationalities - such as France vs England - and on maternal and paternal influences, allowed her to define a questionnaire-test (The Annett Hand Preference Questionnaire, box 1) composed of twelve problem-solving items (six primary and six non-primary actions) to evaluate lateral dominance and its real consistency in human subjects [1, 2, 3]. Given the availability of a practical questionnaire already validated and widespread, in addition to the need to reveal curiosity and frame young boys for an increasingly technical and competitive sporting start-up, a large sample of students was submitted to this test to evaluate their real lateral consistency . Material and methods The sample of students (253 males and 218 females, table 1) aged between 11 and 18 years was reached, after informed consent from parents, during the curricular hours of Physical Education in Milanese schools or of the hinterland of the capital. The professors followed all the procedures for administering the items and collected the results of the actions. All the lecturers first completed a questionnaire training [3] in a specific unitary session, verifying it also personally. Before each performance each student was asked for a statement about their personal laterality self-perception - that is, right-handed, left-handed or ambidextrous - while in succession they were
Translated title of the contribution[Autom. eng. transl.] DESTRORSO OR MANCINO
Original languageItalian
Pages (from-to)55-59
Number of pages5
Volume30 - numero 3
Publication statusPublished - 2013



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