Should Blind Judokas and Partially Sighted Judokas Compete Together? A Reflection from the Study of the Temporal Structure of Combat
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Observational Research Group, Faculty of Education and Sport, Universidade de Vigo, Pontevedra, Spain
Education, Physical Activity and Health Research Group (Gies10-DE3), Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, Spain
Submission date: 2022-11-16
Acceptance date: 2023-03-06
Online publication date: 2023-07-06
Corresponding author
Alfonso Gutiérrez-Santiago   

Didácticas Especiales, Universidade de Vigo, Spain
Journal of Human Kinetics 2023;89:279–288
The investigation of the temporal structure of Para judo combat according to sport classes or visual categories (B1, B2 and B3) has only been carried out in women. The objectives of the study were to analyze the differences in the temporal structure of combat between the male para-judokas sport classes, and to determine whether blind judokas and partially sighted judokas should compete together. All para-judokas who competed in the 2018 IBSA Judo World Championships (172 men) participated in the study. Using observational methodology, we analyzed all the combats (n = 232). To obtain the results, we used different analysis techniques: descriptive, one-way ANOVA, t-test for independent samples and effect size. The level of significance established for the study was ρ ≤ 0.05. The results indicate that during pauses, time dedicated to displacement was increased when there was a B1 judoka in the pairing, causing pauses to be significantly longer. Coaches should take this into account. In conclusion, there are differences between particular visual categories. B1 judokas have longer pauses, perform more ground fighting sequences and win fewer combats. The competition is not on equal terms. More research is needed in order to determine if new regulations have modified the combat temporality.
Anguera, M. T., Blanco-Villaseñor, A., Hernández-Mendo, A., & Losada-López, J. L. (2011). Observational designs: Their suitability and application in sports psychology. Cuadernos de Psicología Del Deporte, 11(2), 63–76.
Anguera, M. T., Blanco-Villaseñor, A., Losada, J. L., & Portell, M. (2018). Guidelines for designing and conducting a study that applies observational methodology. Anuario de Psicologia, 48(1), 9–17.
Blanco-Villaseñor, A., & Anguera, M. T. (2000). Evaluación de la calidad en el registro del comportamiento: Aplicación a deportes de equipo. In E. Oñate, F. García-Sicilia, & L. Ramallo (Eds.), Métodos Numéricos en Ciencias Sociales (pp. 30–48). Centro Internacional de Métodos Numéricos en Ingeniería, Barcelona, Spain.
Brabec, L., Barreto, M., Aedo-muñoz, E. A., Sorbazo Sotto, D. A., Miarka, B., & Brito, J. C. (2022). Judo combat time, scores, and penalties: Review of competition rules changes between 2010 and 2020. Revista de Artes Marciales Asiaticas, 17(1), 19–37.
Calmet, M., Delonca, J., Landes, A., Lecarderonnel, J., Mellado, J., Roy, R., Rychter, A., Rychter, M., & Omegane, T. (2016). Survey of the Paralympic Judokas’ system of attacks. In UFR STAPS (Ed.), 13e JORRESCAM—Les Innovations Dans Les Sports de Combat et Les Arts Martiaux (pp. 1–15). University of Lyon, Lyon, France.
Cohen, J. (1968). Weighted kappa: Nominal scale agreement with provision for scaled disagreement of partial credit. Psychological Bulletin, 70(4), 213–220.
Cohen, J. (1988). Statistical power analysis for the behavioral sciences (2nd ed). Lawrence Erlbaum Associates, Hillsdale, NJ.
Gabin, B., Camerino, O., Anguera, M. T., & Castañer, M. (2012). Lince: multiplatform sport analysis software. Procedia - Social and Behavioral Sciences, 46, 4692–4694.
Griggs, K. E., Stephenson, B. T., Price, M. J., & Goosey-Tolfrey, V. L. (2020). Heat-related issues and practical applications for Paralympic athletes at Tokyo 2020. Temperature (Austin), 7(1), 37–57.
Gutiérrez-Santiago, A., Cancela, J. M., Zubiaur, M., & Ayán, C. (2012). Are male judokas with visual impairments training properly? findings from an observational study. Journal of Visual Impairment and Blindness, 106(4), 224–234.
Gutiérrez-Santiago, A., Gutiérrez-Santiago, J. A., & Prieto-Lage, I. (2022). Sex and weight category differences in the temporal combat structure of judokas with visual impairment. International Journal of Performance Analysis in Sport, 22(2), 225–249.
Gutiérrez-Santiago, A., Gutiérrez, J. A., & Prieto-Lage, I. (2020a). Temporary judo combat structure of women with visual impairment. International Journal of Performance Analysis in Sport, 20(4), 631–645.
Gutiérrez-Santiago, A., Prieto-Lage, I., Martín, A., & Ayán, C. (2020b). Sport injuries in elite paralympic judokas: Findings from the 2018 world championship. Journal of Physical Activity and Health, 17(11), 1162–1170.
Gutiérrez-Santiago, A., Prieto, I., Ayán, C., & Cancela, J. M. (2013). T-Pattern Detection in Judo Combat: An Approach to Training Male Judokas with Visual Impairments According to Their Weight Category. International Journal of Sports Science & Coaching, 8(2), 385–394.
Gutiérrez-Santiago, A., Prieto, I., Camerino, O., & Anguera, T. (2011). The temporal structure of judo bouts in visually impaired men and women. Journal of Sports Sciences, 29(13), 1443–1451.
IBSA. (2022). New IBSA Judo Classification Rules published. IBSASport.
Karimizadeh Ardakani, M., Shalamzari, M.H., & Mansori, M.H. (2020). Effect of core stability training on postural control, risk of falling, and function of the blind: A randomized controlled trial. Balt J Health Phys Activ, 12(3), 11-22.
Kons, R. L., Da Silva Júnior, J. N., Fischer, G., & Detanico, D. (2018). Olympic and paralympic games rio 2016: A technical-tactical analysis of judo matches. Kinesiology, 50(2), 204–210.
Kons, R. L., Haegele, J. A., & Detanico, D. (2021a). World-ranking performance in judo athletes with visual impairment: An approach considering sport classes and weight categories. British Journal of Visual Impairment, In press.
Kons, R. L., Krabben, K., Mann, D. L., & Detanico, D. (2021b). Effect of vision impairment on match-related performance and technical variation in attacking moves in Paralympic judo. Journal of Sports Sciences, 39(sup1), 125–131.
Kons, R. L., Krabben, K., Mann, D. L., Fischer, G., & Detanico, D. (2019). The effect of vision impairment on competitive and technical-tactical performance in judo: Is the present system legitimate? Adapted Physical Activity Quarterly, 36(3), 388–398.
Krabben, K. J., Mashkovskiy, E., Ravensbergen, H. J. C., & Mann, D. L. (2021a). May the best-sighted win? The relationship between visual function and performance in Para judo. Journal of Sports Sciences, 39(sup1),.
Krabben, K. J., Ravensbergen, R. H. J. C., Nakamoto, H., & Mann, D. L. (2019). The development of evidence-based classification of vision impairment in Judo: A Delphi study. Frontiers in Psychology, 10(February), 98.
Krabben, K. J., Ravensbergen, R. H. J. C., Orth, D., Fortin-Guichard, D., Savelsbergh, G. J. P., & Mann, D. L. (2021b). Assessment of Visual Function and Performance in Paralympic Judo for Athletes with Vision Impairment. Optometry and Vision Science, 98(7), 854–863.
Krabben, K. J., van der Kamp, J., & Mann, D. L. (2018). Fight without sight: The contribution of vision to judo performance. Psychology of Sport and Exercise, 37, 157–163.
Loturco, I., Pereira, L., Winckler, C., Bragança, J., da Fonseca, R., Kobal, R., Cal Abad, C., Kitamura, K., Nakamura, F. & Franchini, E. (2017). Performance Changes of Elite Paralympic Judo Athletes During a Paralympic Games Cycle: A Case Study with the Brazilian National Team. Journal of Human Kinetics, 60(1), 217–224.
Mann, D. L., Tweedy, S. M., Jackson, R. C., & Vanlandewijck, Y. C. (2021). Classifying the evidence for evidence-based classification in Paralympic sport. Journal of Sports Sciences, 39(sup1), 1–6.
Mashkovskiy, E., Magomedova, A., & Achkasov, E. (2019). Degree of vision impairment influence the fight outcomes in the Paralympic judo: A 10-year retrospective analysis. Journal of Sports Medicine and Physical Fitness, 59(3), 376–379.
Miarka, B., Dal Bello, F., Brito, C. J., Tabben, M., Oguma, A., Amtmann, J., Moreira, D. I. G., Pocecco, E., Del Vecchio, F. B., & Chamari, K. (2018). Injuries during a World Judo Championship: Differences between sex, weight category and competition phase. International Journal of Performance Analysis in Sport, 18(2), 229–244.
Perret, C. (2017). Elite-adapted wheelchair sports performance: a systematic review. Disability and Rehabilitation, 39(2), 164–172.
Samuel, R. D., Basevitch, I., Wildikan, L., Prosoli, R., & McDonald, K. (2020). Please stop changing the rules! The modifications of judo regulations as a change-event in judokas’ and coaches’ careers. Sport in Society, 23(4), 774–794.
Tweedy, S. M., & Vanlandewijck, Y. C. (2011). International Paralympic Committee position stand-background and scientific principles of classification in Paralympic sport. British Journal of Sports Medicine, 45(4), 259–269.