The Effect of Using Safety Headgears in Taekwondo on Dynamic Parameters Related to Head Injury

Document Type : Original Articles

Authors

1 Lecturer, Department of Physical Education and Sport Sciences, School of Physical Education and Sport Sciences, University of Guilan, Rasht, Iran

2 Instructor, Department of Mechanics, Shoush Branch, Islamic Azad University, Shoush, Iran

3 Associate Professor, Department of Sport Biomechanics, School of Sports Science, University of Mazandaran, Babolsar, Iran

4 Professor, Department of Mechanical Engineering, School of Engineering, Imam Hossein University, Tehran, Iran

10.22122/jrrs.v13i5.3050

Abstract

Introduction: The influence of using safety headgears on important parameters of head injury in taekwondo has not been specified yet. The aim of this study was to investigate the amount of changes in rotational acceleration, linear acceleration, and impact force of head by using headgears in taekwondo.Materials and Methods: In this experimental study, 14 elite men taekwondo athletes participated. To investigate the effect of headgears on head injury parameters, a machine was used that consisted of an artificial neck and head, a mechanical arm that represented the taekwondo athlete foot, and a computer system for monitoring, supervisioning and recording the data, that was made by the researcher. The results were obtained in the MATLAB program. One-way repeated measures ANOVA and Bonferroni tests were applied to analyze the statistics results (P < 0.050).Results: All headgears significantly reduced the impact force and linear acceleration of the head (P = 0.001). Foreign headgears and Iranian headgears significantly decreased and increased rotational acceleration, respectively (P = 0.001).Conclusion: All headgears are good protectors for preventing injuries due to impact force and linear acceleration. But, none of these headgears could reduce rotational acceleration to less than the threshold of head injury.

Keywords

  1. Marar M, McIlvain NM, Fields SK, Comstock RD. Epidemiology of concussions among United States high school athletes in 20 sports. Am J Sports Med 2012; 40(4): 747-55.
  2. Abrahams S, Fie SM, Patricios J, Posthumus M, September AV. Risk factors for sports concussion: an evidence-based systematic review. Br J Sports Med 2014; 48(2): 91-7.
  3. Pieter W, Fife GP, O'Sullivan DM. Competition injuries in taekwondo: a literature review and suggestions for prevention and surveillance. Br J Sports Med 2012; 46(7): 485-91.
  4. Koh JO, Cassidy JD. Incidence study of head blows and concussions in competition taekwondo. Clin J Sport Med 2004; 14(2): 72-9.
  5. O'Sullivan DM, Fife GP, Pieter W, Shin I. Safety performance evaluation of taekwondo headgear. Br J Sports Med 2013; 47(7): 447-51.
  6. McIntosh AS, Patton DA. The impact performance of headguards for combat sports. Br J Sports Med 2015; 49(17): 1113-7.
  7. Gupta S. The attenuation of strike acceleration with the use of safety equipment in tae kwon do. Asian J Sports Med 2011; 2(4): 235-40.
  8. Schmitt KU, Niederer PF, Cronin DS, Muser MH, Walz F. Trauma Biomechanics: An Introduction to Injury Biomechanics. New York, NY: Springer; 2014.
  9. Denny-Brown D, Russell WR. Experimental cerebral concussion. J Physiol 1940; 99(1): 153.
  10. Walilko TJ, Viano DC, Bir CA. Biomechanics of the head for Olympic boxer punches to the face. Br J Sports Med 2005; 39(10): 710-9.
  11. Hadavi F. Measurement and evaluation in physical education. Tehran, Iran: Kharazmi University; 2011. p. 22-3. [In Persian].
  12. Boroushak N, Eslami M, Daneshmandy H. The Effect of the Linear and Rotational Acceleration of the Head on Prediction of Brain Damage in Taekwondo. J Res Rehabil Sci 2017; 13(4): 179-86. [In Persian].
  13. Habibi Tirtashi F, Eslami M. The Immediate Effect of Shoe Insoles on the Frequency Components of Ground Reaction Force during Running. J Res Rehabil Sci 2014; 10 (3): 359-71. [In Persian].
  14. Boroushak N, Eslami M, Kazemi M, Daneshmandy H, Johnson JA. The dynamic response of the taekwondo roundhouse kick to head using computer simulation. Ido Mov Culture J Martial Arts Anthro 2018; 18(2): 54-60.
  15. Alan M, James D, Charles W, Danforth J. Impact Tolerance of the Skull and Face. Proceedings of the 12th Stapp Car Crash Conference; 1968 Oct 22-23; Detroit, MI, USA.
  16. Gurdjian ES, Roberts VL, Thomas LM. Tolerance curves of acceleration and intracranial pressure and protective index in experimental head injury. J Trauma 1966; 6(5): 600-4.
  17. O'Sullivan DM, Fife GP. Impact attenuation of protective boxing and taekwondo headgear. Eur J Sport Sci 2016; 16(8): 1219-25.
  18. Meriam JL, Kraige LG. Engineering Mechanics-Dynamics. Hoboken, NJ: Wiley; 2007.
  19. Ommaya AK, Goldsmith W, Thibault L. Biomechanics and neuropathology of adult and paediatric head injury. Br J Neurosurg 2002; 16(3): 220-42.
  20. Lowenhielm P. Mathematical simulation of gliding contusions. Journal of Biomechanics 1975; 8(6): 351-6.
  21. Hoshizaki TB, Post A, Oeur RA, Brien SE. Current and future concepts in helmet and sports injury prevention. Neurosurgery 2014; 75(Suppl 4): S136-S148.