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Muscle strength as an element of preparation and sport competition is one of the most important aspects in technical and tactical efficiency. The aim of this study was to define the level of relation between bioelectrical muscle activity and isokinetic strength parameters in 17-19-year-old judoists.30 judo athletes (17-19-year-old) took part in the research. The research was conducted in Gdańsk Academy of Physical Education and Sport Laboratory during 2006-2008. In the research authors used: to evaluate the isokinetic strength level, "Concept 2 Dyno" device was used in the research, along with surface summary electrical bio-potentials reading on EMG AMT-8 CDN BORTEC BIOMEDICAL with ACQ software.In the upper right limb there are more statistical significant correlations between isokinetic strength parameters and electrical muscle activities.In the lower limbs measurement of the left leg shows more significant correlations.Comparing the upper and lower limbs, it was noticed that the isokinetic strength parameters of the upper limbs are more correlated with the measured muscle electrical activities.Regarding the left and the right side comparison, the right side (the upper and the lower limb) isokinetic strength parameters are more correlated with the measured muscle activities.
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. 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).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. 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.
Until now, analyses gave no information about the numerous quantitative parameters that might affect the level of performance of a group composition. The research was undertaken with a more advanced computer program to analyze competitive performance using the performance parameters such as space parameters, running path, throwing distances, movement network, arrangement forms, etc during the 2008 Baltic Rhythmic Gymnastics Cup (Senior) in order to find which quantitative and qualitative criteria distinguish the performance of the best teams.Videos from the Baltic Rhythmic Gymnastics Cup 2008 in Poland were analyzed. In the final analysis results of national teams from Poland, Georgia, Azerbaijan, Japan and Lithuania were taken into consideration. Each team included 5 participant plus one substitute, aged 16-25 (senior group), practicing rhythmic gymnastics for 11 years. Participants executed 2 routines performance: with ropes and with hoops and clubs. The computer software "SIMI Scout" developed by University of Magdeburg in co-operation with the firm SIMI GmbH Munich was applied.For the evaluation of results, data are summarized and considered logically by groups. The first group documents is the spatial behavior of 5 gymnasts in the competition area. The second group contains data on selected difficulties, such as mobility elements, waves, turns, balance elements and standing. In the third group, data are recorded for the behavior of the hand apparatus, for example, apparatus changes and distances covered by the hand apparatus without body contact. The fourth group gives an overview of the degree of difficulty of the techniques in different categories, while the fifth group contains data on the synchronicity of motor actions.The number of formation parameters, the throws parameters, the number of artistic elements parameters and the catch parameter can be considered as important criteria in the ropes performance of the group competition.This research failed to show any important criteria in the clubs and hoops performance of the group competition.
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