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Journal Cover   Archives of Budo
  [SJR: 0.346]   [H-I: 7]   Follow
  This is an Open Access Journal Open Access journal
   ISSN (Print) 1643-8698
   Published by International Scientific Literature Homepage  [3 journals]
  • Arch Budo 2015; 11:OA61-66 "Kinematics of the turning kick –
           measurements obtained in testing well-trained taekwon-do athletes"

    • Authors: Jacek Wąsik; Gongbing Shan
      Abstract: [b]Background and Study Aim:[/b] The aim of the paper is the influence of selected kinematic factors on the turning kick technique. This issue is practically relevant in the traditional version of taekwon-do, where an effectively performed strike may divulge the winner. [b]Material and Method: [/b]Using 3D motion capture technology, six International Taekwon-do Federation athletes were tested. Biomechanical parameters related to range of motion, kick power and kick time were applied in the analyses. The athletes executed the turning kick three times in a way typically applied in a board breaking kick. The quantification focused on the speed changes related to kicking leg extension, the maximum knee and foot velocities in the Cartesian coordinate system and the total time of kick execution. The descriptive statistics (i.e. average values and the standard deviations) and correlation analysis were applied in data analysis. [b]Results:[/b] The results have shown that the effect of the kick is mainly represented by component of kick foot velocity in frontal- and lateral-directions. The correlation analyses unveil that the maximal knee speeds reached in frontal- and lateral-directions as well as foot take-off velocity in frontal- and vertical-directions are highly correlated to kick foot effectiveness (r = 0.60 to 0.87). The analysis of velocity development in relation to kick leg extension divulges that the maximal velocity occurs around 80% of a full leg extension. [b]Conclusion[/b]: For increasing kick effectiveness, athletes should work on the foot take-off velocity, the dynamics of the knee motion and consider the optimum kick length for kicking power maximization.
      PubDate: Tue, 6 Jan 2015 0:0 EST
  • Arch Budo 2015; 11:33-39 "Swiss ball training versus stable surface
           training for the treatment of low back pain in male judo athletes"

    • Authors: Antonio J Monroy Antón; Bárbara Rodríguez Rodríguez, David López Jiménez
      Abstract: [b]Background and Study Aim: [/b]Between 60% and 80% of the population suffers from low back pain at some point in their lives. This disease is commonly observed in judo, with a prevalence of around 35%. Therefore, any instrument, program or training method for the treatment of this disease is very important. Apparently, unstable surface training can be effective in reducing low back pain. However, there are not many studies that have been conducted in this regard, and the few existing ones have not opted for any particular training method. The purpose in this study is knowledge about the effect on low back pain of two different training programs, one using Swiss ball and the other with stable surface. [b]Material and Methods:[/b] Thirty-six active volunteers, all of them judo athletes, participated in the study. They were randomly assigned to either the training group (exercising on a Swiss ball) or the control group (training on stable surface). Pain intensity was measured at the beginning and at the end of the 8 weeks in both groups by the Spanish version of the Roland Morris Disability Questionnaire (RMDQ). [b]Results: [/b]The results of paired t test showed a significant decrease in RMDQ after treatment in both groups compared with before treatment (p<0.001), while the ANCOVA revealed no significant differences among groups on the post measurement score of RMDQ, with pre-treatment scores as the covariate. [b]Conclusions:[/b] The training on unstable surfaces does not provide any significant improvement versus training on stable surfaces and might be at least as good as training on a Swiss ball in the reduction of low back pain for judo athletes.
      PubDate: Tue, 6 Jan 2015 0:0 EST
  • Arch Budo 2015; 11:OA1-7 "Effect of preferred body stance side on the
           performance of Special Judo Fitness Test in Japanese judo athletes"

    • Authors: Akitoshi Sogabe; Katarzyna Sterkowicz-Przybycien, Kiyoshi Maehara, Taketo Sasaki, Stanislaw Sterkowicz
      Abstract: [b]Background & Study Aim. [/b]This study aimed to further knowledge of: 1) body stance side preferred in performing tachi-waza (fighting in standing position); 2) level of fitness preparation of males and females; 3) effect of the dominant body side on the quality of performance in SJFT and the effort perceived. [b]Material & Methods[/b]. Paired selection helped obtain the consistency of the characteristics of 9 male and 9 female subjects in terms of age (Males 18.0 2.3 vs. Females 17.2 2.3 years), training experience (9.9 1.7 vs. 10.7 2.9 years), sports skill level (1-2 dan) and another weight category. A dominant fighting stance (right or left) was determined. In another two days, the randomly selected subjects performed SJFT with the dominant and non-dominant body side. The data grouped according to the body side formed the condition factor. The analysis used non-parametric statistical tests. The differences were tested at the significance level set at p<0.05. [b]Results[/b]. Distribution of the group sizes for left- and right-sided subjects in groups of males and females did not differ (p=0.667). Performing the throws in series A of SJFT with the dominant vs. non-dominant body side showed significantly better results in males (p=0.030), but not in females (p=0.424). Evaluation of the similarity of performing SJFT with the non-dominant body side in a judo bout during competition was significantly higher in males compared to females (p=0.015). [b]Conclusions.[/b] The throws used during SJFT are most frequently performed using the dominant compared with the non-dominant body side, but the females are characterized by a specific pattern of performing consecutive series of SJFT compared to men. Women feel higher fatigue when performing the test using the non-dominant body side.
      PubDate: Tue, 6 Jan 2015 0:0 EST
  • Arch Budo 2015; 11: ""

    • Authors: Aleksandra Truszczyńska; Justyna Drzał-Grabiec, Sławomir Snela, Maciej Rachwal
  • Arch Budo 2015; 11: ""

    • Authors: Katarzyna Janiszewska; Katarzyna E Przybyłowicz
  • Arch Budo 2015; 11: ""

    • Authors: Robert Michnik; Jacek Jurkojć, Piotr Wodarski, Dariusz Mosler, Roman Maciej Kalina
  • Arch Budo 2015; 11: ""

    • Authors: Barbara Bergier
  • Arch Budo 2015; 11:OA7-12 "Elaboration and evaluation of judo training

    • Authors: Gustavo Ferreira Pedrosa; Ytalo Mota Soares, Reginaldo Gonçalves, Bruno Pena Couto, Ronaldo Angelo Dias da Silva, Leszek Antoni Szmuchrowski
      Abstract: [b]Background and Study Aim.[/b] At the moment to select training means for composing the training program, many coaches are guided by the empirical evidence of training means specificity. A practical and scientific instrument containing relevant judo training means may contribute to coaches to achieve better results. The purpose of this study was to elaborate a catalogue of judo training means and classify it according to specificity: general, special or specific. [b]Material and Methods[/b]. Five Brazilian judo coaches answered what exercises are used for training the judo demand. The exercises were combined to a physical training method generating training means and it were submitted to 9 experts who evaluated the practical relevance and the specificity of each training mean to form the catalogue. The Coefficient of Validity Content and the Coefficient of Kappa were used as a statistical tool to measure the practical relevance of the catalogue and the classification of specificity, respectively. [b]Results. [/b]Seventy six exercises were listed and suitable to training means. Coefficient of Kappa value was = 0.533. Twenty two training means were classified as general, sixteen as special and thirty eight as specific of judo. The Coefficient of Validity Content for the catalogue was = 0.821. Analyzing this coefficient by specificity, the group of specific training means achieved the higher rate and the general group had the lower rate. [b]Conclusion.[/b] A catalogue of training means for judo were elaborated and classified by specificity. The high rate found for practical relevance confirm the representatively of this catalogue.
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