2015, Volume 11
Effect of preferred body stance side on the performance of Special Judo Fitness Test in Japanese judo athletes
Akitoshi Sogabe1, Katarzyna Sterkowicz-Przybycien2, Kiyoshi Maehara3, Taketo Sasaki4, Stanislaw Sterkowicz5
1Education and Research Center for Sport and Health, Konan University, Kobe, Japan, Kobe
2Department of Gymnastics and Dance, Faculty of Physical Education and Sport, University of Physical Education in Krakow, Poland, Krakow
3Graduate School of Comprehensive Human Sciences, Tsukuba University, Tsukuba, Japan, Tsukuba
4Faculty of Human Development and Culture, Fukushima University, Fukushima, Japan, Fukushima
5Department of Theory of Sport and Kinesiology, Faculty of Physical Education and Sport, University of Physical Education in Krakow, Poland, Krakow
Author for correspondence: Akitoshi Sogabe; Education and Research Center for Sport and Health, Konan University, Kobe, Japan; email: sogabe[at]center.konan-u.ac.jp
Background and Study Aim: 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.
Material and Methods: 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.
Results: 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).
Conclusions: 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.
Key words: functional laterality, muscle fatigue, physical fitness, sex