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Rafael L. Kons, Kai Krabben, David L. Mann, Gabriela Fischer, and Daniele Detanico

In judo competition for visual impairment, athletes of different classes compete against each other in the same category; B1 athletes are totally blind, whereas B2 and B3 athletes are partially sighted. To test for potential competition disparities due a single category of athletes, this study aimed to compare competitive and technical–tactical performance in visually impaired judo athletes with different degrees of visual impairment. The authors analyzed 340 judo matches from the 2012 and 2016 Paralympic Games. The scores, penalties, efficiency index, and types of medals were examined, as well as the technical variation and temporal structure. The main finding was that blind judo athletes presented lower scores (p < .05; effect size [ES] = 0.43–0.73), medals (p < .05), and efficiency (p < .05; ES = 0.40–0.73); different patterns of play; and a shorter time to lose than partially sighted athletes (p = .027; ES = 0.10–0.14). However, the penalties were similar between classes (p > .05; ES = 0.07–0.14). The odds ratio of a winning medal was 3.5–8 times less in blind athletes than in partially sighted athletes (p < .01). In conclusion, blind judo athletes presented lower competitive and technical–tactical performance than athletes with some residual functional vision. These findings provide support for the development of new evidence-based criteria for judo classification based on vision impairment.

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Robert Rein, Chris Button, Keith Davids, and Jeffery Summers

The present paper proposes a technical analysis method for extracting information about movement patterning in studies of motor control, based on a cluster analysis of movement kinematics. In a tutorial fashion, data from three different experiments are presented to exemplify and validate the technical method. When applied to three different basketball-shooting techniques, the method clearly distinguished between the different patterns. When applied to a cyclical wrist supination-pronation task, the cluster analysis provided the same results as an analysis using the conventional discrete relative phase measure. Finally, when analyzing throwing performance constrained by distance to target, the method grouped movement patterns together according to throwing distance. In conclusion, the proposed technical method provides a valuable tool to improve understanding of coordination and control in different movement models, including multiarticular actions.

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Fabian Otte, Tim Dittmer, and Julia West

coaching and training designs should not be separated from team training (as may traditionally have been the case within this domain for years; Otte et al., 2019a ). These notions of GK–team integration may be underlined by the recent UEFA technical analysis on goalkeeping during the 2020 European

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Bianca Miarka, Fábio Dal Bello, Ciro J. Brito, Fabrício B. Del Vecchio, John Amtmann, and Karim Chamari

Descriptive Analysis and Comparisons of Technical Analysis of UFC by Stoppage Group Doc-stoppage No doc-stoppage Technical variables µ SD 50th 25th 75th µ SD 50th 25th 75th U P ES Standing actions  Total strikes landed 20.5 15.0 17.0 10.0 28.8 18.2 16.4 6.0 14.0 24.0 32,927.500 .009 −0.11  Total strikes

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Paul G. Schempp and Sophie Woorons

prescription pattern; but not always. Experts’ understanding of drill patterns, as well as technical analysis and past experience, were also factors influencing their ability to infer likely outcomes. Drill patterns observed in the video where especially helpful in providing the experts with cues as to what

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Michal Vágner, Zdeněk Bílek, Karel Sýkora, Vladimír Michalička, Lubomír Přívětivý, Miloš Fiala, Adam Maszczyk, and Petr Stastny

-0838.2003.00130.x Robles-Pérez , J.J. , Aguirre-Puig , J.A. , Montañez-González , P. , Jesús Ramos-Campos , D. , & Clemente-Suárez , V.J. ( 2014 ). Technical analysis of close quarter combat with rifle . The Open Sports Sciences Journal, 7 ( 1 ), 49 – 52 . doi:10.2174/1875399x01407010049 10

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Emma C. Neupert, Stewart T. Cotterill, and Simon A. Jobson

is advisable for it to become routinely utilized within the sport. Performance reviews, video/technical analysis, (in)formal coach/athlete discussions, scheduling and routine training programming can provide avenues to regularly interact with the TMS. 7 Exploring the use of personalized questions

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Montassar Tabben, Bianca Miarka, Karim Chamari, and Ralph Beneke

– 1495 . PubMed ID: 22614139 doi:10.1519/JSC.0b013e318231a66d 10.1519/JSC.0b013e318231a66d 22614139 7. Tabben M , Coquart J , Chaabene H , Franchini E , Ghoul N , Tourny C . Time-motion, tactical and technical analysis in top-level karatekas according to gender, match outcome and

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Montassar Tabben, Daniele Conte, Monoem Haddad, and Karim Chamari

, Franchini E , Ghoul N , Tourny C . Time-motion, tactical and technical analysis in top-level karatekas according to gender, match outcome and weight categories . J Sports Sci . 2015 ; 33 ( 8 ): 841 – 849 . PubMed ID: 25358098 doi:10.1080/02640414.2014.965192 25358098 10

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Emerson Franchini

performance and injury prevention . Sports Med . 2008 ; 38 ( 6 ): 465 – 481 . PubMed ID: 18489194 doi:10.2165/00007256-200838060-00003 18489194 10.2165/00007256-200838060-00003 8. Tabben M , Coquart J , Chaabene H , Franchini E , Ghoul N , Tourny C . Time-motion, tactical and technical