Evaluation of kinematic characteristics when competitive exercises performed by sportsmen of shock styles of single combats on the example of taekwondo WTF

Evaluation of kinematic characteristics when competitive exercises performed by sportsmen of shock styles of single combats on the example of taekwondo WTF


Dr. Hab., Professor O.G. Epov1
PhD E.M. Kalinin1
V.A. Kuzmichev1
K.A. Potapova1

1Russian University Sport (SCOLIPE), Moscow

Objective of the study was to reveal the kinematic characteristics of the motional actions of the sportsmen of the shock styles of martial arts during the performance of competitive exercises.
Methods and structure of the study. An experiment was conducted with the participation of athletes of martial arts taekwondo WTF in the amount of eight athletes. To register the kinematic characteristics of motor actions, the Wimu Pro system, made in Spain, was used, the sensor of which was attached to the back and the back surface of the soleus muscle of the "shock" leg. Athletes performed a nerio-chaga kick (falling kick from top to bottom) with different intensity: 1) slow, 2) medium, 3) maximum, 4) as in a duel and 5) on the paws.
Results and conclusions. For the first time, the results were obtained, which made it possible to determine the kinematic characteristics of motor actions for the falling blow of nerio-chaga in athletes of the WTF taekwondo martial arts. It was found that the angular velocity of the leg movement is carried out with different angular velocity, both during the swing and during the impact movement. The intensity of leg movement in different modes is influenced by: angular velocity, the presence or absence of resistance. The control of motor actions parameters is also informative and necessary in training and competitive activities, as well as heart rate indicators.

Keywords: impact, movement, control, speed, acceleration.


  1. Utkin V.L. Biomekhanika fizicheskikh uprazhneniy [Biomechanics of physical exercises]. Study guide. Moscow: Prosveshcheniye publ., 1989. 210 p.
  2. Bastida-Castillo A., Gomez-Carmona C.D., Sanchez E., Pino-Ortega J. Comparing accuracy between global positioning systems and ultra-wideband-based position tracking systems used for tactical analyses in soccer. European Journal of Sport Science, 2019. Vol.19. рp. 1157-1165.
  3. Buxade C. P-C., Riu J.M., Castet D.G. et al. Influence of turn cycle structure on performance of elite alpine skiers assessed through an IMU in different slalom course settings. Sensors. 2022. Vol. 22. рp. 902-916.
  4. Epov O.G., Kalinin E.M., Epov E.O. et al. Application of modern information technologies of feedback in impact martial arts on the example of taekwondo WTF. European journal of physical education and sport science, 2022. Vol. 8. Nо. 4. рp. 51-57.
  5. García F., Vázquez-Guerrero J., Castellano J., Casals M., Schelling X. Differences in physical demands between game quarters and playing positions on professional basketball players during official competition. Journal of Sports Science and Medicine. 2020. Vol. 19. рp. 256-263.
  6. Granero-Gil P., Bastida-Castillo A., Rojas-Valverde D., Gómez-Carmona C.D. et al. Influence of contextual variables in the changes of direction and centripetal force generated during an elite-level soccer team season. International Journal of Environmental Research and Public Health. 2020. Vol. 17. рp. 967-982.
  7. Ibata Y., Kitamura S., Motoi K., Sagawa K. Measurement of three-dimensional posture and trajectory of lower body during standing long jumping utilizing body-mounted sensors. IEEE engineering in medicine and biology society. 2013. рp. 4891-4894.
  8. Osgnach C., Poser S., Bernardini R., Rinaldo R. Energy cost and metabolic power in elite soccer: a new match analysis approach. Medicine and science in sports and exercise, 2010. Vol. 42 (1). рp. 170-178.
  9. J. Pino-Ortega, J. García-Rubio, S. Ibáñez Validity and reliability of the WIMU inertial device for the assessment of the vertical jump. The open access journal for life and environment Peer J. 2018. р.1-12.
  10. Vazquez-Guerrero J., Reche X., Cos F., Casamichana D., Sampaio J. Changes in external load when modifying rules of 5-on-5 scrimmage situations in elite basketball. The journal of strength and conditioning research. 2020. Vol. 34. рp. 3217-3224.