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Muscle Strength and Technical Skills in 17-19-Year-Old Judoists

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Dornowski M., Jagiełło W., Smaruj M.
Baltic Journal of Health and Physical Activity
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2011
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vol. 3
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issue 4
262-268
EN
Background: The aim of this study was to define the relationships between different kinds of muscle strength manifestations and technical skills (selected throwing techniques) in 17-19-year-old judoists.Material/Methods: Results of measurements taken in 2006-2008 at the Physical Effort Lab in the Gdansk University of Physical Education and Sport were taken under consideration. 30 male judo athletes (17-19-year-old) participated in the study. They all were students of Comprehensive Sports School - with the judo profile and athletes representing clubs from Pomerania and Warmia-Masuria Provinces.An ergometric device "Concept 2 Dyno" was used in the measurements of isotonic strength and strength endurance. In the measurement of static strength an electronic dynamometer ERGO METER was used. To evaluate the level of technical skills (throws), the method of expert evaluation was used (coach evaluation).Results: Using regression analysis results, which revealed the most significant relationships between variables presented in percentage value, relation's topographies of particular types of muscle strength were created. They form an applicable, transparent and ready-to-use in training process form for coaches. They point to these elements of strength preparation on which the training process should be primarily focused and during measurement intervals as well.Conclusions: Interpretation and synthesis of the results showed relationships of 10 technical skills (throws) with muscle strength in 17-19-year-old judoists in three out of four types: isotonic strength, strength endurance and static strength. These skills were included in hand throws - 2, foot - 1, hip - 3 and sacrifice - 4. Jump force remained with no significant relationships.The results of this study can be used in the training process of 17-19-year-old judoists. Following technical skills (throws) were characterized: tai-otoshi, seoi-nage, kosoto-gari, uki-goshi, tsuri-goshi, ushiro-goshi, tani-otoshi, osoto-makikomi, yokootoshi, yoko-guruma.
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Characteristics of technical-tactical preparation of Russian men’s judo representation during the Olympic Games in London in 2012

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Adam M., Wolska B., Klimowicz P., Smaruj M.
Baltic Journal of Health and Physical Activity
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2013
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vol. 5
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issue 4
249-260
EN
Background The aim of the study was to determine the value of indices of tactical and technical preparation (PTT) of Russian judo athletes during the Olympic Games in London. The values of these indices may designate the direction of activity in the process of special preparation and in the search for factors to optimize training before the main competitions. Material/Methods: During the Olympic Games in London in 2012, Russian judo representatives fought 31 fights. A multiple analysis of video footage and graphic registration allowed marking 423 technical attacks (including 24 efficient attacks) of the representatives of Russia and 384 attacks (including 5 efficient attacks) performed by their opponents in these competitions. On the basis of the classification of judo techniques developed by Kodokan Judo, an assessment of the effectiveness of particular groups of techniques has been made. The most commonly used technique and the dominant techniques used by the observed athletes have been distinguished. Indices of tactical and technical preparation have enabled the identification of characteristic features of preparation of the representatives of Russia and of their opponents during the Olympic Games in London in 2012. Results: Russian athletes were characterized by high efficiency of techniques from the grappling group. The dominant techniques were: varieties of the broken scarf hold (kesa gatame kuzure), back-lying perpendicular armbar (ude hishigi juji gatame), sweeping hip throw (harai goshi) and the sacrifice throw "valley drop" (tani otoshi). Athletes were characterized by stable efficiency of techniques from all the groups of throws and with 100% efficiency of defence in ground fighting. Russian competitors were far superior to their opponents in the efficiency of the ways and directions of performing throws (Ea - WP, NP, F, B). They retained a positive index of activity (A = +1.162). The advantage of values of the determined indices of tactical and technical preparation among representatives of Russia over their opponents in the Olympic Games in London was commensurate with the obtained results. Conclusions: The efficiency of Russian athletes during the OG in London was confirmed by the values of the indices by which tactical and technical preparation was evaluated. The analysis of indices allowed characterizing features specific to Russian representatives.
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The Contest Effectiveness of the Men's National Judo Team of Japan, and Character of Their Technical-Tactical Preparation during the World Judo Championships 2010

100%
Adam M., Tyszkowski S., Smaruj M.
Baltic Journal of Health and Physical Activity
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2011
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vol. 3
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issue 1
65-74
EN
Background: The aim of our research was to determine the contest effectiveness of Japanese judo competitors and to state the quantitative an qualitative indices of the tactical-technical preparation (PTT). The values of these indices may be used for controlling the process of special preparation.Material/Methods: Medal classification of the national teams from all Olympic Games and World Championships, and contest effectiveness of the national teams during 2007-2010 were determined. The analysis of PTT indices of 16 Japanese competitors was carried out. They fought 78 contests during the World Championships 2010. Predominant techniques were described. The selected indices have been assessed.Results: Japanese competitors prevailed over their opponents in the men's group during the Olympic Games and the World Championships. After changing sport rules in judo, they overcame their poor performance within 2007-2009, and they have become leaders in world's judo. Japanese competitors are highly effective in leg throws, especially in such throws as: uchimata, osoto gari, and kouchi gari as well as seoi nage (although this throw is a hand technique). They executed throws forwards and mainly by means of pivot. Japanese competitors had a positive value of activity indices and high indices of defense.Conclusions: Sport results achieved by Japanese judo competitors prove their high contest performance and the dominating position in judo competitions. Among their dominating techniques, we can see leg techniques performed by pivoting and breaking balance forwards on toes. They are also effective in executing grappling techniques such as holdings (immobilizations) for example. During the World Championships in 2010 Japanese competitors were characterized by a positive value of activity indices and high indices of defence.
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