2011, Volume 3, Issue 4

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

Marcin Dornowski¹, Władysław Jagiełło², Mirosław Smaruj<sup>2

1</sup>Department of Theory of Sport and Human Motor Skills, Gdansk University of Physical Education and Sport in Gdansk
²Gdansk University of Physical Education and Sport in Gdansk


Author for correspondence: Marcin Dornowski; Department of Theory of Sport and Human Motor Skills, Gdansk University of Physical Education and Sport in Gdansk; email: marcin_dornowski[at]wp.pl

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Abstract

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.

Key words: judo, muscle strength, technical skills, throws