Simple Strategy to Prevent Severe Head Trauma in Judo —Biomechanical Analysis—

To determine whether the use of an under-mat has an effect on impact forces to the head in Judo, a Judo expert threw an anthropomorphic test device using the Osoto-gari and Ouchi-gari techniques onto a tatami (judo mat) with and without an under-mat. Head acceleration was measured and the head injur...

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Autores principales: Murayama, Haruo, Hitosugi, Masahito, Motozawa, Yasuki, Ogino, Masahiro, Koyama, Katsuhiro
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Japan Neurosurgical Society 2013
Materias:
Original Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4508688/
https://www.ncbi.nlm.nih.gov/pubmed/24067767
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author Murayama, Haruo
Hitosugi, Masahito
Motozawa, Yasuki
Ogino, Masahiro
Koyama, Katsuhiro
author_facet Murayama, Haruo
Hitosugi, Masahito
Motozawa, Yasuki
Ogino, Masahiro
Koyama, Katsuhiro
author_sort Murayama, Haruo
collection PubMed
description To determine whether the use of an under-mat has an effect on impact forces to the head in Judo, a Judo expert threw an anthropomorphic test device using the Osoto-gari and Ouchi-gari techniques onto a tatami (judo mat) with and without an under-mat. Head acceleration was measured and the head injury criterion (HIC) values with or without under-mat were compared. The use of an under-mat significantly decreased (p = 0.021) the HIC values from 1174.7 ± 246.7 (without under-mat) to 539.3 ± 43.5 in Ouchi-gari and from 330.0 ± 78.3 (without under-mat) to 156.1 ± 30.4 in Osoto-gari. The use of an under-mat simply reduces impact forces to the head in Judo. Rule changes are not necessary and the enjoyment and health benefits of Judo are maintained.
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spelling pubmed-45086882015-11-05 Simple Strategy to Prevent Severe Head Trauma in Judo —Biomechanical Analysis— Murayama, Haruo Hitosugi, Masahito Motozawa, Yasuki Ogino, Masahiro Koyama, Katsuhiro Neurol Med Chir (Tokyo) Original Article To determine whether the use of an under-mat has an effect on impact forces to the head in Judo, a Judo expert threw an anthropomorphic test device using the Osoto-gari and Ouchi-gari techniques onto a tatami (judo mat) with and without an under-mat. Head acceleration was measured and the head injury criterion (HIC) values with or without under-mat were compared. The use of an under-mat significantly decreased (p = 0.021) the HIC values from 1174.7 ± 246.7 (without under-mat) to 539.3 ± 43.5 in Ouchi-gari and from 330.0 ± 78.3 (without under-mat) to 156.1 ± 30.4 in Osoto-gari. The use of an under-mat simply reduces impact forces to the head in Judo. Rule changes are not necessary and the enjoyment and health benefits of Judo are maintained. The Japan Neurosurgical Society 2013-09 2013-09-25 /pmc/articles/PMC4508688/ /pubmed/24067767 Text en © 2013 The Japan Neurosurgical Society This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/4.0/
spellingShingle Original Article
Murayama, Haruo
Hitosugi, Masahito
Motozawa, Yasuki
Ogino, Masahiro
Koyama, Katsuhiro
Simple Strategy to Prevent Severe Head Trauma in Judo —Biomechanical Analysis—
title Simple Strategy to Prevent Severe Head Trauma in Judo —Biomechanical Analysis—
title_full Simple Strategy to Prevent Severe Head Trauma in Judo —Biomechanical Analysis—
title_fullStr Simple Strategy to Prevent Severe Head Trauma in Judo —Biomechanical Analysis—
title_full_unstemmed Simple Strategy to Prevent Severe Head Trauma in Judo —Biomechanical Analysis—
title_short Simple Strategy to Prevent Severe Head Trauma in Judo —Biomechanical Analysis—
title_sort simple strategy to prevent severe head trauma in judo —biomechanical analysis—
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4508688/
https://www.ncbi.nlm.nih.gov/pubmed/24067767
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