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  Subjects -> SPORTS AND GAMES (Total: 199 journals)
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Revista de Artes Marciales Asiáticas
Number of Followers: 0  

  This is an Open Access Journal Open Access journal
ISSN (Print) 2174-0747
Published by Universidad de León Homepage  [8 journals]
  • Seed advantage in sport competitions: the case of professional judo

    • Authors: Vivien Brunel
      Pages: 108 - 118
      Abstract: The aim of this paper was to quantify the advantage granted to seeds in the case of professional judo knockout competitions. We used Monte-Carlo simulations to compute statistics including the probability of winning the competition, reaching the final or winning a medal in a standard draw compared to a random draw. We showed that the advantage given to seeds is often significant. As a result, misclassification in the ranking list is at a great disadvantage for top athletes that are not seeded. Interestingly, the advantage given to seeds appears robust as a function of parameters, such as sex or number of athletes, and modelling assumptions. Simulation is a flexible tool for athletes to take decisions in managing their position in the ranking list and to optimize their probability of success in major events.
      PubDate: 2022-05-23
      DOI: 10.18002/rama.v17i2.7047
      Issue No: Vol. 17, No. 2 (2022)
  • Impact of time-of-day on judo-specific performance

    • Authors: Furkan Öztürk, Bayram Ceylan, Şükrü Serdar Balci
      Pages: 119 - 129
      Abstract: In judo tournaments, matches for each weight category are held on the same day and athletes competing at the finals have to compete at different times of the day. This study aimed to investigate the effect of time-of-day on judo specific performance and the changes in physiological load following judo specific performance. Fourteen male judo athletes (age 19.1±1.4 years) voluntarily participated in the study. At the 1st visit, anthropometrical measurements and familiarization procedures were conducted and the athletes’ chronotype was determined. Athletes performed the Special Judo Fitness Test (SJFT) during 2nd and 3rd visits. Athletes randomly performed two consecutive SJFTs with 15 min intervals at 10:00h, which is the official start time of matches, and at 18:00h which is the time when the finals start. During SJFT applications, athletes heart rate (HR), blood lactate (bLA), body temperature and rate of perceived exertion (RPE) were monitored. The changes in total throw numbers (F1, 13= 1.32, p=0.27) and SJFT index (F1, 13= 0.30, p=0.59) were not different between morning and evening. There were similar changes in bLA (F4, 52=0.66, p=0.63), RPE (F1, 13=1.42, p=0.26) and body temperature (F1.4, 18.0=1.18, p=0.31) which were measured before and after the tests. However, HR measured in the evening were higher compared to morning measurement at all measurement times (F1, 13=10.28, p=0.01), but there was no difference in SJFT throws (F3.8, 48.8=0.49, p=0.74). In conclusion, different times of the day did not affect judo specific performance as well as physiological variables in judo athletes.
      PubDate: 2022-08-01
      DOI: 10.18002/rama.v17i2.7276
      Issue No: Vol. 17, No. 2 (2022)
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