The Attenuation of Strike Acceleration with the Use of Safety Equipment in Tae Kwon Do

AUTHORS

Sanjey Gupta 1 , *

1 Department of Emergency Medicine, New York Hospital Queens, 5645 Main Street Flushing, NY 11355, USA.,

How to Cite: Gupta S. The Attenuation of Strike Acceleration with the Use of Safety Equipment in Tae Kwon Do, Asian J Sports Med. 2011 ; 2(4):e94438. doi: 10.5812/asjsm.34743.

ARTICLE INFORMATION

Asian Journal of Sports Medicine: 2 (4); e94438
Published Online: December 01, 2011
Article Type: Research Article
Received: May 25, 2019
Accepted: June 27, 2011
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Abstract

Purpose: The objectives of this study include: (1) Determination of the attenuation of strike acceleration that Tae Kwon Do sparring safety pads provide from kicks from Olympic style TKD fighters, (2) The sex and weight differentiation in acceleration achieved within the thorax model with the roundhouse kicks.

Methods: This prospective, observational study utilized 15 Olympic style fighters from an “elite” team kicking a water core heavy bag thorax model with roundhouse kicks. The model was fitted with a tri-axial accelerometer (GCDC, model X250-2) to measure g acceleration from strikes to the bag. The bag was kicked in three, 10 kick phases by all subjects: kicks without padding; kicks with hogu on heavy bag, and kicks with hogu and instep guards on feet. The g acceleration readings were recorded in all phases.

Results: Kolmogorov-Smirnov failed for all variables. There were 8 female subjects: median age 14 years, median weight 53.4 kg and 7 male subjects: median age 17 years, median weight 70.45 kg. The ANOVA on ranks of the acceleration from kicks against the bag achieved significance, P=0.001. Spearman rank order correlation between the weights of players and acceleration of strike against the hogu without and with insteps pads was significant, P=0.035/r=0.54 and P=0.018/r=0.59, respectively.

Conclusion: Heavier and male subjects tend to produce more force in strikes. Protective chest guard reduces acceleration to the thorax model, but the utility of instep guards is questionable.

Keywords

Martial arts Injury Safety Equipment Acceleration Kick

© 2011, Author(s). This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/) which permits copy and redistribute the material just in noncommercial usages, provided the original work is properly cited.

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