Judo rules: searching for a wind of changes
After 2016, the International Judo Federation changed rules to promote the "positive" judo. This study compared two World Championships editions before and after the rules changes: Astana-2015 and Budapest-2017. Data from matches disputed in Astana (765) and Budapest (768) were analysed concerning: total match duration, frequency of scores and penalties, association between edition and extra-time, disqualifications and matches without penalties. Three-way ANOVA was used to compare sexes, weight categories and World Championships edition, with Fisher`s Least Significant Difference (LSD) test as post hoc. The associations between World Championships edition and matches finished in extra-time, disqualifications and matches without any score were tested via Chi-square. Results were: (a) no change in number of ippon when the same sex and weight category were considered across years; (b) number of waza-ari increased from Astana to Budapest; (c) number of penalties decreased from Astana to Budapest. Females in Budapest received less penalties than females in Astana and males in both competitions. Extra-lightweights received less penalties than lightweights upwards; heavyweights received more penalties than all other weight categories from middleweights downwards; (d) occurrence of extra-time and hansoku-make increased for females, males and all groups together; (e) males` matches were longer than females ones. Thus, the new rules partially achieved the goal proposed.
© Copyright 2017 International Journal of Performance Analysis in Sport. Taylor & Francis. Kaikki oikeudet pidätetään.
Aiheet: | kilpailusäännöt ja määräykset arviointi tekniikka judo analyysi kilpailu huippu-urheilu maailmanmestaruuskilpailut suorituskyky hyökkäys puolustus |
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Aihealueet: | kamppailu-urheilu |
DOI: | 10.1080/24748668.2017.1405612 |
Julkaisussa: | International Journal of Performance Analysis in Sport |
Julkaistu: |
2017
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Vuosikerta: | 17 |
Numero: | 6 |
Sivuja: | 863-871 |
Julkaisutyypit: | artikkeli |
Kieli: | englanti (kieli) |
Taso: | kehittynyt |