Br J Sports Med. 2013 Jan 24. [Epub ahead of print]
Safety performance evaluation of taekwondo headgear.
Source
Department of Physical Education, Chung-Ang University, Anseong, Republic of Korea.
Abstract
BACKGROUND:
With over 20 years of taekwondo concussion research highlighting the high incidence of injury, previous studies recommend an investigation of headgear impact attenuation performance.
OBJECTIVE:
To examine impact attenuation differences between the anterior, posterior and sides of selected taekwondo headgear brands.
DESIGN:
Between-groups.
SETTING:
Biomechanics laboratory.
METHODS:
Five different commercially available taekwondo headgear were selected for impact testing. A 50th percentile Hybrid II Dummy Crash Test head and neck was fitted with the selected helmet and was bolted to a 25 kg steel torso-like structure. Each headgear model was impacted eight times to the anterior, posterior and sides by a 6.75 kg bowling ball at three heights to produce 52.25, 85 and 144 J strikes.
MAIN OUTCOME MEASUREMENTS:
Resultant head linear acceleration.
RESULTS:
Two-way (Helmet×Location) mixed analysis of variance with repeated measures on the second factor was performed to determine the differences between headgear by location of impact. There was a two-way (Helmet×Location) interaction for acceleration (η(2)=0.368).
CONCLUSIONS:
Taekwondo headgear manufacturers and sport governing bodies must consider improving the design of especially anterior helmet properties.
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