Improvement of Early Recognition of Attacks in Karate Kumite Due to Training in Virtual Reality

In a Virtual Reality training, young karate athletes divided in two groups (intervention vs. control group) responded to attacks of a virtual opponent. For the analysis, the first reaction of the responding karate athletes was detected. From that point three reaction times were subtracted to analyze...

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Autores principales:	Katharina Petri, Nicole Bandow, Steffen Masik, Kerstin Witte
Formato:	article
Lenguaje:	EN ID
Publicado:	UIR Press 2019
Materias:	vrtraining classification of movement stages perception anticipation head mounted display Sports GV557-1198.995
Acceso en línea:	https://doi.org/10.25299/sportarea.2019.vol4(2).3370 https://doaj.org/article/44ba9998c4254373ae3b98c4619c3d9c
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spelling	oai:doaj.org-article:44ba9998c4254373ae3b98c4619c3d9c2021-12-02T16:09:23ZImprovement of Early Recognition of Attacks in Karate Kumite Due to Training in Virtual Realityhttps://doi.org/10.25299/sportarea.2019.vol4(2).33702528-584X2527-760Xhttps://doaj.org/article/44ba9998c4254373ae3b98c4619c3d9c2019-12-01T00:00:00Zhttps://journal.uir.ac.id/index.php/JSP/article/view/3370/2123https://doaj.org/toc/2528-584Xhttps://doaj.org/toc/2527-760XIn a Virtual Reality training, young karate athletes divided in two groups (intervention vs. control group) responded to attacks of a virtual opponent. For the analysis, the first reaction of the responding karate athletes was detected. From that point three reaction times were subtracted to analyze the attack of the virtual opponent at the time of the recognition of the real athlete. The attacks were divided into four movement stages. Analysis of Variance (ANOVAs) with repeated measures and estimation of effect sizes as well as Bonferroni post-hoc tests were applied to calculate interactions between time (PRE to POST), group (intervention vs. control) and reaction time (150 ms vs. 255 ms vs. 370 ms). We found significant effects for time and time x group interactions for the attacks Gyaku-Zuki and Kizami-Zuki as well as an effect for time x reaction time in Gyaku-Zuki (all p < 0.001), but no significant effects for time x group x reaction time in both attacks (p > 0.05). Paired t-tests showed significant improvements in attack recognition from PRE to POST for the intervention group, but not for the control group. At the pretest all athletes responded to late movement stages (extension of the pushing arm) while the intervention group responded to early movement stages (preparing steps and reduction of distance before the attack) at the posttest due to the Virtual Reality training. Early steps for the preparation of the attack and the reduction of distance seem to be important signals for attack recognition.Katharina PetriNicole BandowSteffen MasikKerstin WitteUIR Pressarticlevrtrainingclassification of movement stagesperceptionanticipationhead mounted displaySportsGV557-1198.995ENIDJournal Sport Area, Vol 4, Iss 2, Pp 294-308 (2019)
institution	DOAJ
collection	DOAJ
language	EN ID
topic	vrtraining classification of movement stages perception anticipation head mounted display Sports GV557-1198.995
spellingShingle	vrtraining classification of movement stages perception anticipation head mounted display Sports GV557-1198.995 Katharina Petri Nicole Bandow Steffen Masik Kerstin Witte Improvement of Early Recognition of Attacks in Karate Kumite Due to Training in Virtual Reality
description	In a Virtual Reality training, young karate athletes divided in two groups (intervention vs. control group) responded to attacks of a virtual opponent. For the analysis, the first reaction of the responding karate athletes was detected. From that point three reaction times were subtracted to analyze the attack of the virtual opponent at the time of the recognition of the real athlete. The attacks were divided into four movement stages. Analysis of Variance (ANOVAs) with repeated measures and estimation of effect sizes as well as Bonferroni post-hoc tests were applied to calculate interactions between time (PRE to POST), group (intervention vs. control) and reaction time (150 ms vs. 255 ms vs. 370 ms). We found significant effects for time and time x group interactions for the attacks Gyaku-Zuki and Kizami-Zuki as well as an effect for time x reaction time in Gyaku-Zuki (all p < 0.001), but no significant effects for time x group x reaction time in both attacks (p > 0.05). Paired t-tests showed significant improvements in attack recognition from PRE to POST for the intervention group, but not for the control group. At the pretest all athletes responded to late movement stages (extension of the pushing arm) while the intervention group responded to early movement stages (preparing steps and reduction of distance before the attack) at the posttest due to the Virtual Reality training. Early steps for the preparation of the attack and the reduction of distance seem to be important signals for attack recognition.
format	article
author	Katharina Petri Nicole Bandow Steffen Masik Kerstin Witte
author_facet	Katharina Petri Nicole Bandow Steffen Masik Kerstin Witte
author_sort	Katharina Petri
title	Improvement of Early Recognition of Attacks in Karate Kumite Due to Training in Virtual Reality
title_short	Improvement of Early Recognition of Attacks in Karate Kumite Due to Training in Virtual Reality
title_full	Improvement of Early Recognition of Attacks in Karate Kumite Due to Training in Virtual Reality
title_fullStr	Improvement of Early Recognition of Attacks in Karate Kumite Due to Training in Virtual Reality
title_full_unstemmed	Improvement of Early Recognition of Attacks in Karate Kumite Due to Training in Virtual Reality
title_sort	improvement of early recognition of attacks in karate kumite due to training in virtual reality
publisher	UIR Press
publishDate	2019
url	https://doi.org/10.25299/sportarea.2019.vol4(2).3370 https://doaj.org/article/44ba9998c4254373ae3b98c4619c3d9c
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_version_	1718384463405121536

Improvement of Early Recognition of Attacks in Karate Kumite Due to Training in Virtual Reality

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