Observational analysis of the variability of actions in judo: the key for success?





Martial arts, combat sports, judo, variation, technique, tactics, long-term athlete development


Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) under grant number 301003/2019-0


The main objective of the present study was to determine whether variation in gripping action, actions before attacking, throwing techniques, direction of attack, transition from standing to groundwork combat, and groundwork techniques varied between male and female judo athletes and between gold, silver and bronze medalists in judo World Championships for cadet, junior and senior athletes. Therefore, 296 athletes who won medals in these competitions between 2018 and 2019, who executed a total of 1202 scoring actions in standing position and 300 scoring actions in the groundwork combat were analyzed. Higher variation was observed for gold medal winners for grip, actions before attack compared to bronze medalists, whereas transition variation was greater for gold medal winners compared to the other medalists. However, no differences were found between age groups, except when interacting with sex, as a lower technique variation was observed in female cadets compared to all other male age groups. Additionally, less variation was observed in females compared to males for grip, actions before attacking, number of techniques and direction of attacks. Therefore, variation in some elements can properly discriminate the podium position, females present less variation than males, but no relevant differences were found between age groups.


Download data is not yet available.

Métricas alternativas


Calmet, M., & Ahmaidi, S. (2004). Survey of advantages obtained by judoka in competition by level of practice. Perceptual and Motor Skills, 99(1), 284-290. doi: https://doi.org/10.2466/pms.99.1.284-290

Calmet, M., Miarka, B., & Franchini, E. (2010). Modeling of grasps in judo contests. International Journal of Performance Analysis in Sport, 10(3), 229-240. doi: https://doi.org/10.1080/24748668.2010.11868518

Calmet, M., Trezel, N., & Ahmaidi, S. (2006). Survey of system of attack by judoka in regional and interregional matches. Perceptual Motor Skills, 103(3), 835–840. doi: https://doi.org/10.2466/pms.103.3.835-840

Camargo, R. G., Guerra, G. M., Rosa, R. L., Calmet, M., Takito, M. Y., & Franchini, E. (2019). Attack side and direction during the 2017 Judo World Championship. Sport Sciences for Health, 15, 477-480. doi: https://doi.org/10.1007/s11332-019-00540-6

Cohen, J. (1988). Statistical power analysis for the behavioral sciences. Lawrence Earlbaum Associated Hillsdale.

Franchini, E., Artioli, G. G., & Brito, C. J. (2013). Judo combat: time-motion analysis and physiology. International Journal of Performance Analysis in Sport, 13(3), 624-641. doi: https://doi.org/10.1080/24748668.2013.11868676

Franchini, E., Fukuda, D. H., & Lopes-Silva, J. P. (in press). Tracking 25 years of judo results from the World Championships and Olympic Games: Age and competitive achievement. Journal of Sports Sciences, 38(13), 1531-1538. doi: https://doi.org/10.1080/02640414.2020.1747265

Franchini, E., & Takito, M. Y. (2014). Olympic preparation in Brazilian judo athletes: description and perceived relevance of training practices. Journal of Strength and Conditioning Research, 28(6), 1606-1612. doi: https://doi.org/10.1519/jsc.0000000000000300

Franchini, E., Sterkowicz, S., Meira, C. M., Gomes, F. R., & Tani, G. (2008). Technical variation in a sample of high level judo players. Perceptual and Motor Skills, 106(3), 859-869. doi: https://doi.org/10.2466/pms.106.3.859-869

Julio, U. F., Takito, M. Y., Mazzei, L., Miarka, B., Sterkowicz, S, & Franchini, E. (2011). Tracking 10-year competitive winning performance of judo athletes across age groups. Perceptual and Motor Skills, 113(1), 139-149. doi: https://doi.org/10.2466/05.10.11.pms.113.4.139-149

Martins, F. P., Souza, L. S. D. P., Campos, R. P., Bromley, S. J., Takito, M. Y., & Franchini, E. (2019). Techniques utilised at 2017 Judo Wolrd Championship and theis classification: comparisons between sexes, weight categories, winners and non-winners. Ido Movement for Culture, 19(1), 58-65. doi: https://doi.org/10.14589/ido.19.1.6

Miarka, B., Marques, J. B., & Franchini, E. (2011). Reinterpreting the history of women’s judo in Japan. International Journal of the History of Sport, 28(7), 1016-1029. doi: https://doi.org/10.1080/09523367.2011.563633

Moura, C., Agostinho, M. F., & Franchini, E. (2017). Pacing no judo: inter and intra-observer objectivity of temporal and technical variables. Annals of Simpósio Internacional de Iniciação Científica e Tecnologia da USP. São Paulo. Available at https://uspdigital.usp.br/siicusp/siicPublicacao.jsp?codmnu=7210

Nagai, S., Takito, M. Y., Calmet, M., Pierantozzi, E., & Franchini, E. (2019). Successful transition to groundwork combat during Junior and Senior Judo World Championships. International Journal of Performance Analysis in Sport, 19(2), 206-215. doi: https://doi.org/10.1080/24748668.2019.1585739

Schimdt, R. A., & Lee, T. D. (2020). Motor learning and performance: from principles to application. Human Kinetics.




How to Cite

Agostinho, M. F., & Franchini, E. (2021). Observational analysis of the variability of actions in judo: the key for success?. Revista de Artes Marciales Asiáticas, 15(2), 69–77. https://doi.org/10.18002/rama.v15i2.6341




Most read articles by the same author(s)

1 2 3 > >>