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When and How a Judo Contest Ends: Analysis of Scores, Penalties, Rounds and Temporal Units in 2018, 2019 and 2021 World Championships    
Yazarlar
Xurxo Dopico-Calvo
Xian Mayo
Luis Santos
Eduardo Carballeira
Jozef Simenko
Doç. Dr. Bayram CEYLAN Doç. Dr. Bayram CEYLAN
Kastamonu Üniversitesi
Ivan Clavel
Eliseo Iglesias-Soler
Özet
The main aim of this study was to analyse the relationship between how contests end (scores or penalties), the temporal units and the competition rounds regarding when the contest end in the 2018, 2019 and 2021 Judo World Championships. A total of 2340 contests involving 2244 elite judo athletes (1343 men and 901 women) were analysed. Pearson’s chi-squared (χ2) was implemented to analyse the association between variables, and the standardised residuals were used to analyse its interpretation; the strength of the associations was reported as Cramer’s V. Shapiro–Wilk and Kolmogorov–Smirnov were implemented to test the normality of the length of golden score (GS) sequences, and Kruskal–Wallis was applied for analysing GS sequences by championships. Mann–Whitney U was also implemented if a significant effect was detected. The level of significance was set at 0.05. The results were as follows: (1) Most contests ended before the accomplishment of the regular time (BRT), and they were won by ippon. (2) During BRT, the defeated accumulated more shido than the winner, while the opposite happened in contests finishing at the regular time (FRT). (3) Contests ending in the first and third minutes decreased, while contests ending in the second and fourth minutes increased; a longer length of the GS period was observed for women compared with men. (4) BRT contests were overrepresented in rounds 1 and 2, while extended time contests (EXT) in repechage, semi-final, bronze and final were overrepresented. (5) There were fewer waza-ari than expected during the preliminary rounds and more in the final rounds. The current study reveals cornerstone information that could be used to improve the training programs of elite judo athletes.
Anahtar Kelimeler
combat sports | golden score | performance analysis | phase | rule | stage | temporal unit
Makale Türü Özgün Makale
Makale Alt Türü ESCI dergilerinde yayımlanan tam makale
Dergi Adı APPLIED SCIENCES-BASEL
Dergi ISSN 2076-3417
Makale Dili İngilizce
Basım Tarihi 02-2023
Cilt No 13
Sayı 4
Doi Numarası 10.3390/app13042395