Coordinative movement skills in judo refer to the ability of an individual athlete to perform a suitable action at the correct moment while quickly adapting to the constantly fluctuating competitive environment ( Miarka, Branco, Vecchio, Calmet, & Franchini, 2015 ). Notational analysis is concerned
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Bianca Miarka, Katarzyna Sterkowicz-Przybycien, and David H. Fukuda
Tyler W.D. Muddle, David H. Fukuda, Ran Wang, Joshua J. Riffe, David D. Church, Kyle S. Beyer, Jay R. Hoffman, and Jeffrey R. Stout
, Lech, Jaworski, & Ambrozy, 2012 ). Typically, judo bouts occur in the vertical position ( Franchini & Sterkowicz, 2000 ), requiring athletes to adapt their posture quickly in reaction to combat situations. This is particularly important when performing techniques used during practice or competition
Anita M. Rivera-Brown and Roberto A. De Félix-Dávila
Adolescent judo athletes who train in tropical climates may be in a persistent state of dehydration because they frequently restrict fluids during daily training sessions to maintain or reduce their body weight and are not given enough opportunities to drink.
Purpose:
Determine the body hydration status of adolescent judo athletes before, immediately after, and 24 h after (24H) a training session and document sweat Na+ loss and symptoms of dehydration.
Methods:
Body mass and urine color and specific gravity (USG) were measured before, after, and 24 h after a training session in a high-heat-stress environment (29.5 ± 1.0°C; 77.7 ± 6.1% RH) in 24 adolescent athletes. Sweat sodium loss was also determined. A comparison was made between mid-pubertal (MP) and late pubertal (LP) subjects.
Results:
The majority of the subjects started training with a significant level of dehydration. During the training session, MP subjects lost 1.3 ± 0.8% of their pretraining body mass whereas LP subjects lost 1.9 ± 0.5% (P < .05). Sweat sodium concentration was 44.5 ± 23.3 mmol/L. Fluid intake from a water fountain was minimal. Subjects reported symptoms of dehydration during the session, which in some cases persisted throughout the night and the next day. The 24H USG was 1.028 ± 0.004 and 1.027 ± 0.005 g/mL for MP and LP, respectively.
Conclusions:
Adolescent judo athletes arrive to practice with a fluid deficit, do not drink enough during training, and experience symptoms of dehydration, which may compromise the quality of training and general well-being.
Vinícius Y.B. Suetake, Emerson Franchini, Bruna T.C. Saraiva, Anne K.F. da Silva, Aline F.B. Bernardo, Rayane L. Gomes, Luiz Carlos M. Vanderlei, and Diego G.D. Christofaro
mentioned, there is a need for research in the field of martial arts as a method of exercise for health prevention/promotion. Moreover, it is not clear in the literature if grappling (judo) and striking martial arts (Muay Thai) exert the same influence on HRV in children and adolescents. It is noteworthy
Joffrey Bardin, Pierre Bourdier, Bastien Bontemps, Allison Diry, Anthony Birat, Anthony J. Blazevich, Frédéric Roualen, Christine Hanon, Claire Thomas, and Sébastien Ratel
The purpose of a judo contest is to make the opponent fall, submit, or become immobilized in order to score points within regulation time (4 min for men and women). 1 If both participants are equal on points at the end of regulation time, combat is pursued without time limit until one athlete
Saša Krstulović, Andrea De Giorgio, Óscar DelCastillo Andrés, Emerson Franchini, and Goran Kuvačić
, & Mitchell, 2018 ; Shi et al., 2018 ). Along with these proposals for intervention, there are proactive works focusing on the fall techniques of different combat sports, such as judo, which teach how to fall to avoid injury or severity ( Nauta et al., 2013 ; Campos-Mesa, DelCastillo-Andrés, Toronjo
Reid Reale, Gary Slater, and Louise M. Burke
All Olympic combat sports (currently, judo, taekwondo, boxing, and wrestling) separate athletes by body mass (BM) into “weight” divisions to minimize size/strength disparities. To ensure athletes meet weight requirements, official weigh-ins are held before competition. In addition to reducing body
Rafael Lima Kons, Marina Saldanha da Silva Athayde, Lara Antunes, Jaqueline Santos Silva Lopes, and Daniele Detanico
Judo is a high-intensity intermittent combat sport in which several physical aspects, including physiological, neuromuscular, psychological, and behavioral, are necessary to achieve optimal technical performance and competitive success. 1 , 2 During specific actions related to attacks, defenses
Rafael L. Kons and Daniele Detanico
Combat sports usually present similar characteristics, such as the intermittent nature of efforts during matches, noncyclic actions, and undetermined time limits (e.g., matches may end in seconds or last a few minutes; Ceylan et al., 2022 ; Franchini et al., 2011 ). In judo, for example
Christina Yannetsos, Mario C. Pacheco, and Danny G. Thomas
Key Points ▸ There is a widespread underreporting of concussion in athletes. ▸ Red-flag symptoms were often mistaken for common concussive symptoms by judo coaches. ▸ Coaches’ concussion education, judo equipment, and legislature are potential areas of improvement. Sport-related concussion has an
