Kinematics of self-initiated and reactive karate punches

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Bibliographische Detailangaben
Deutscher übersetzter Titel:Die Kinematik von selbstinitiierten und reaktiven Karateschlägen
Autor:Martinez de Quel, Oscar; Bennett, Simon J.
Erschienen in:Research quarterly for exercise and sport
Veröffentlicht:85 (2014), 1, S. 117-123, Lit.
Format: Literatur (SPOLIT)
Publikationstyp: Zeitschriftenartikel
Medienart: Gedruckte Ressource
Sprache:Englisch
ISSN:0270-1367, 2168-3824
DOI:10.1080/02701367.2013.872222
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Erfassungsnummer:PU201407006790
Quelle:BISp

Abstract des Autors

This study investigated whether within-task expertise affects the reported asymmetry in execution time exhibited in reactive and self-initiated movements. Karate practitioners and no-karate practitioners were compared performing a reverse punch in reaction to an external stimulus or following the intention to produce a response (self-initiated). The task was completed following the presentation of a specific (i.e., life-size image of opponent) or general stimulus and in the presence of click trains or white noise. Kinematic analyses indicated reactive movement had shorter time to peak velocity and movement time, as well as greater accuracy than self-initiated movement. These differences were independent of participant skill level although peak velocity was higher in the karate practice group than in the no-karate practice group. Reaction time (RT) of skilled participants was facilitated by a specific stimulus. There was no effect on RT or kinematic variables of the different type of auditory cues. The results of this study indicate that asymmetry in execution time of reactive and self-initiated movement holds irrespective of within-task expertise and stimulus specificity. This could have implications for training of sports and/or relearning of tasks that require rapid and accurate movements to intercept/contact a target. Verf.-Referat