2020, Volume 16

Application of inertial sensors system for diagnosis of taekwon-do’s forms performance – a case study



Jacek Wąsik1, Dariusz Mosler1, Tomasz Góra1, Dorota Ortenburger1

1FACULTY OF HEALTH SCIENCES, Jan Dlugosz University in Czestochowa, Poland, Częstochowa, Poland


Author for correspondence: Jacek Wąsik; FACULTY OF HEALTH SCIENCES, Jan Dlugosz University in Czestochowa, Poland, Częstochowa, Poland; email: j.wasik@ujd.edu.pl

Jacek Wąsik: 0000-0002-6285-7283

Dariusz Mosler: 0000-0002-8794-2994

Tomasz Góra: 0000-0002-0660-4038

Dorota Ortenburger: 0000-0003-4878-0459



Abstract

Background and Study Aim: New technology brings new ways to assess performance in the forms in martial arts from biomechanical perspective. The aim of this study is knowledge about the usefulness of kinematic assessment in objective analysis of rhythm (patterned recurrence of movement in time), tempo (speed of motion) and dynamics of taekwondo techniques while performing certain form.

Material and Methods: ITF taekwon-do athlete participated in this study (male; age 30 years; body mass 56 kg; height 160 cm). During  an analysis, the participant performed a sequence of techniques called saju-jirugi. For the purpose of this analysis, inertial system were used. Acceleration and angular velocity data from both sensors attached to dorsal area of fist was obtained.

Results: Maximal velocity of striking punch (right), gradually decreases from 11.68 m/s to 8.55 m/s. In the same time, maximal velocities of retracted, opposite hand was higher for every punch (highest value of 12.67 m/s), but without same tendency. There is moderate correlation between maximal velocities of both hands during measured strikes (r = 0.65). Highest correlation is noticed between difference in values of maximal velocities of both hands and value of maximal velocity for retracted (left) hand.

Conclusions: Depending on motion capture devices and techniques, angular and linear velocities could serve equally as determinant of performance quality. Conducted research provides sufficient arguments, that this type of measurement allows to objectively measure performance in a single trial as well as monitoring of its progress.


Key words: technique, simulation, movement analysis, kicks kinematics, intentional goal, coordination, velocity


Cite this article as:

AMA:

Wąsik J, Mosler D, Góra T et al. Application of inertial sensors system for diagnosis of taekwon-do’s forms performance – a case study. ARCH BUDO. 2020;16

APA:

Wąsik, J., Mosler, D., Góra, T., & Ortenburger, D. (2020). Application of inertial sensors system for diagnosis of taekwon-do’s forms performance – a case study. ARCH BUDO, 16

Chicago:

Wąsik, Jacek, Mosler Dariusz, Góra Tomasz, Ortenburger Dorota. 2020. "Application of inertial sensors system for diagnosis of taekwon-do’s forms performance – a case study". ARCH BUDO 16

Harvard:

Wąsik, J., Mosler, D., Góra, T., and Ortenburger, D. (2020). Application of inertial sensors system for diagnosis of taekwon-do’s forms performance – a case study. ARCH BUDO, 16

MLA:

Wąsik, Jacek et al. "Application of inertial sensors system for diagnosis of taekwon-do’s forms performance – a case study." ARCH BUDO, vol. 16, 2020

Vancouver:

Wąsik J, Mosler D, Góra T et al. Application of inertial sensors system for diagnosis of taekwon-do’s forms performance – a case study. ARCH BUDO 2020; 16