Injury assessment of common nage-waza judo techniques for amateur judokas

P Thomas Curran,Iván Prieto Lage,Miguel Ángel Prieto Lage,Alfonso Gutiérrez-Santiago

doi:10.1080/24748668.2016.11868942

P Thomas Curran, Iván Prieto Lage + Show 2 more

Open Access

https://doi.org/10.1080/24748668.2016.11868942

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Abstract

There are few detailed publications that allow performing associations between the technical aspects and the occurrence of injuries. The purpose of this study was to apply a methodology based in recording material to assess the injury risk factors. Common nage-waza judo techniques during regular training of amateur judokas were used as a case study. Novice students (n=193; 100 men and 93 women) from the University of Vigo during five academic years (2003 to 2008) were filmed during the ordinary training period of the technical execution of ten nage-waza techniques. The obtained data were evaluated using descriptive statistics and tpatterns analysis. Thus, it was possible to identify the presence of typical inaccuracies during execution of the technique uncovering the main temporal sequence of errors allowing us to link our findings with the injury occurrence. In order to narrow the unexpected causes of accidents regarding poor technique performance in regular training, this research provides the hidden temporal sequence of errors of common throw techniques, helping professionals to correct the key technical errors in order to prevent diverse type injuries. The methodology developed here could be easily extended to other martial sports.

Highlights

Considering the recent increase of interest in sports, the knowledge regarding injury and illness as a result of sport activity is an essential public health priority (European Commission, 2007)
It was possible to identify the presence of typical inaccuracies during execution of the technique uncovering the main temporal sequence of errors allowing us to link our findings with the injury occurrence
The present paper proposes a new methodological procedure based on the joint action of three different but well established techniques: identification of common technical errors based on video records, descriptive statistics of the obtained data and temporal sequences recognition using t-patterns analysis

Summary

Introduction

Considering the recent increase of interest in sports, the knowledge regarding injury and illness as a result of sport activity is an essential public health priority (European Commission, 2007). Judo is an activity characterized by an abundant number of techniques that involve changes in direction, twisting, lifting, and landing from falls and throws (Kujala and Taimela 1995). Under these circumstances, several studies have showed judo as a sport with higher amount of injury occurrences, presenting a concerning rate of 18.3 occurrence records per 1,000 hours of practice (Rodriguez et al 1998; Parkkari et al 2004; Green et al 2007). Amateur judokas are less skillful and trained and are more likely to suffer risky situations that can cause different types of injuries (Barsottini et al 2006; Yard and Knox 2007)

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