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Analysis of video review during official judo matches: effects on referee's decision and match results    
Yazarlar
Rafael Lima Kons
Marina Athayde
Doç. Dr. Bayram CEYLAN Doç. Dr. Bayram CEYLAN
Kastamonu Üniversitesi, Türkiye
Emerson Franchını
Daniela Detanico
Özet
This study aimed to describe the frequency of video review (VR) used during international judo matches. The duration and time of VR occurrence and the effect of VR on subsequent referee’s decisions and match outcomes were investigated. Video recordings from the matches in which the VR was used  in the 2020 Grand Slams (n = 122) were analysed. The main results showed most VR occurrences were from 1 to 2 min for female athletes (p = 0.03). Lightweight categories in both male and female groups showed the highest frequency of VR (37.3%). No significant differences were detected for VR duration and time when VR occurred considering sex and weight categories (p = 0.91, p = 0.26, respectively). A significant association was found between the type of action and the referee’s decision (p < 0.01), being score assignment the most frequent action (77.6% of male and 64.8% of female). More than 80% of the athletes (82.3% male and 78.3% female) won their matches after referees’ checking. We concluded that VR is often used at the beginning of the match mainly in the female group, mostly concerning scoring attribution, which directly affected the match result in more than 80% of the cases.
Anahtar Kelimeler
Video analysis,match outcome,combat sport,time-motion analysis
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı International Journal of Performance Analysis in Sport
Dergi ISSN 2474-8668
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q2
Makale Dili İngilizce
Basım Tarihi 05-2021
Cilt No 21
Sayı 4
Sayfalar 1 / 9
Doi Numarası 10.1080/24748668.2021.1926165
Makale Linki http://dx.doi.org/10.1080/24748668.2021.1926165