2018, Volume 14
Biochemical indicators and systemic reaction times in male judo competitors during regular and pre-competition conditioning periods
Masahiro Tamura1, Nobuyoshi Hirose1, Takashi Miida2, Satoshi Hirayama2, Tsuyoshi Ueno2, Takamasa Tsuzuki3, Kouji Yano4, Takumi Kanemochi5
1Faculty of Health and Sports Science, Juntendo University, Tokyo, Japan
2Department of Clinical Laboratory Medicine, Graduate Schol of Medicine, Juntendo University, Tokyo, Japan
3Faculty of Pharmacy, Meijyo University, Aichi, Japan
4Department of Clinical Laboratory Medicine, Graduate Schol of Medicine, Juntendo University | Center for Genomic and Regenerative Medicine, School of Medicine, Juntendo University, Tokyo, Japan
5Toho Junior and Senior High School, Tokyo, Japan
Author for correspondence: Masahiro Tamura; Faculty of Health and Sports Science, Juntendo University, Tokyo, Japan; email: email@example.com
Background and Study Aim: Weight control and exercise measures are integral to preparing for judo competitions. As such, a good understanding of these two areas is key to doing well in competitions, but until now, no research has thoroughly addressed them. The aim of this study was knowledge about biochemical, muscular and neural indicators during regular and pre-competition conditioning training periods of the male judo athletes (at least the rank of first dan and over 10 years practice).
Material and Methods: Sixteen judo competitors participated in this study. Blood components as analysed through samples, muscular and neural response times and body composition variables were examined. Food and water intake was also recorded. Comparisons were drawn, and conclusions were made comparing samples and data from regular and pre-competition conditioning periods.
Results: A comparison of water and caloric intake during practice between regular and pre-competition training periods showed no significant differences. Blood samples from the pre-competition sample set showed higher concentrations of the blood components analysed. Quicker muscular contraction and neural response times were recorded during pre-competition training when compared to those from regular season training.
Conclusions: Improved performance resulted from competitors' reduced liquid intake and exercise intensity Biochemical, muscular and neural data may assist coaches and athletes in assessing their physical condition in a way that could support better training and competition outcomes.
Key words: weight loss, physical performance, conditioning