Home advantage in judo: A study of the world ranking list

a School of Physical Education and Sport, University of São Paulo , Brazil.
Journal of Sports Sciences (Impact Factor: 2.25). 10/2012; 31(2). DOI: 10.1080/02640414.2012.725855
Source: PubMed


Abstract In 2009, the International Judo Federation established a ranking system (RS) to classify athletes and to distribute the competitor quotas of the Olympic Games. However, the RS does not consider the home advantage. This issue has not been studied in judo, and its implications for the RS have not been determined. The objective was to verify the home advantage in judo in terms of winning a medal or the number of matches won. Therefore, 25 competitions that computed points for the RS in 2009 were analysed. Logistic regression analysis and the Poisson generalised linear model were used for the analyses, which included the relative quality of the athletes. The sample was composed only of athletes who had competed both at home and away. The odds ratio for winning medals was higher for athletes who competed at home for both males and females. The association between the number of matches won and competing at home was significant only for the male athletes. The home advantage was observed in the competitions that used the judo RS. Thus, it is likely that athletes from countries that host competitions using the RS have an advantage in terms of obtaining their Olympic classification.

Download full-text


Available from: Bianca Miarka, Sep 22, 2014
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: The aim of this study was to describe the training routines used by judo athletes and their perception concerning the relevance, effort made, concentration needed and pleasure obtained during the training sessions conducted six months prior to their Olympic participation, and to compare medal winners and other competitors in these aspects. Sixty-one Olympic Brazilian judo athletes (males = 39; females = 22), representing 66.3% of all Brazilian participants in this Olympic sport (from 1964 to 2008), including 10 medal winners (nine males and one female) answered a questionnaire concerning their training routines. Mann-Whitney and Student t test for independent samples were used. Judo medallists and non-medallists in the Olympic Games did not differ in: (a) the age they started to practice and to compete in judo; (b) age when they competed in the Olympic Games; (c) hours of training per week and per training session and number of training sessions per day in their preparation for this event; (d) frequency and time spent performing judo-specific and general exercises, as well as their perceived relevance, effort, pleasure and concentration for these activities performed during the preparation for the Olympic Games. The only differences found were the groundwork (ne-waza) randori practice, which was less frequently performed by medal winners, and perceived relevance atributted to this activity, which was considered less relevant by the medal winners compared to non-medal winners. Thus, judo Olympic medal winners and non-medallists did not differ in many training aspects in the final phase of their preparation to the Olympic Games.
    Full-text · Article · Oct 2013 · The Journal of Strength and Conditioning Research
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: Abstract The aim of the study was to verify differences between age groups of female judo matches in time-motion and technical-tactical analysis. The sample was composed of pre-cadet (13-14 years, n = 148), cadet (15-16 years, n = 228), junior (17-19 years, n = 104) and senior (>20 years, n = 237) groups. The time-motion indicators consisted of total combat time, standing combat time, displacement without contact, gripping time, total time of techniques, groundwork combat time and pause time, per match and by each combat/pause cycle. Technical and tactical variables were also collected. The one-way analysis of variance and a post hoc test were conducted, P ≤ 0.05. Cadets, with a median of 7 (2, 12), had a number of combat/pause cycles different from junior, with 3 (1, 8.5). Regarding time-motion per match and per cycle, senior had longer total combat time, standing combat time and gripping time than other groups. Senior presented lower frequency of leg techniques than pre-cadet, cadet and junior. Time-motion and technical-tactical variables effects in female judo athletes emphasise the difference between seniors and other groups.
    Full-text · Article · Apr 2014 · Journal of Sports Sciences
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: The objective of the present study was to determine the methods of quantification for training and performance which would be the most appropriate for modelling the responses to long-term training in Cadet and Junior judo athletes. For this, 10 young male judo athletes (15.9 ± 1.3 years, 64.9 ± 10.3 kg and 170.8 ± 5.4 cm) competing at a regional/state level volunteered to take part in the study. Data were collected during a two years training period (i.e, 702 days) from January 2011 to December 2012. Their mean training volume was 6.52 ± 0.43 hours per week during the preparatory periods and 4.75 ± 0.49 hours per week during the competitive periods. The followed a training program prescribed by the same coach. The training load was quantified through the session-rating of perceived exertion (RPE) and expressed in arbitrary unit (a.u.). Performance was quantified from five parameters divided in two categories: performance in competition and performance in training. The evaluation of performance in competition was based upon the number of points per level. Performance in training was assessed through four different tests. A physical test battery consisting in a standing long jump, two judo specific tests that were the maximal number of dynamic chin up holding the judogi and the Special Judo Fitness Test. System modeling for describing training adaptations consisted of mathematically relating the training load of the training sessions (system input) to the change in performance (system output). The quality of the fit between training load and performance was similar whether the training load was computed directly from RPE (R = 0.55 ± 0.18) or from the session-RPE (R = 0.56 ± 0.18) and significant in 8 athletes over 10, excluding the standing jump from the computation of the training load, leading to a simplest method. Thus, this study represents a first attempt to model training load effects on judo-specific performance and has shown that the best relationships between amounts of training and changes in performance were obtained when training amounts were quantified simply from RPE.
    Full-text · Article · Nov 2014 · The Journal of Strength and Conditioning Research
Show more

We use cookies to give you the best possible experience on ResearchGate. Read our cookies policy to learn more.