Measurement of the head impacts in a sub-elite Australian Rules football team with an instrumented patch: An exploratory analysis

King, D and Hecimovich, M and Clark, T and Gissane, C (2017) Measurement of the head impacts in a sub-elite Australian Rules football team with an instrumented patch: An exploratory analysis. International Journal of Sports Science & Coaching. p. 174795411771051. ISSN 1747-9541

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Official URL: https://doi.org/10.1177/1747954117710512

Abstract

To investigate the frequency, magnitude, and distribution of head impacts in Australian Football League players over a season of matches. A prospective cohort analysis of impact magnitude, frequency, and distribution on data collected with a wireless head impact sensor worn behind the ear of 23 players. A total of 4903 impacts were recorded. Players experienced on average 407�143 impacts over the duration of the study resulting in 30�38 impacts per-player permatch. Linear accelerations ranged from 10 g to 153 g with a mean, median, and 95th percentile value of 17 g, 13g, and 40 g, respectively. Rotational accelerations ranged from 130 rad/s2 to 21,890 rad/s2 with a mean, median, and 95th percentile value of 2426 rad/s2, 1556 rad/s2, and 7571 rad/s2, respectively. This study obtained initial measurements on the frequency, magnitude, distribution, and risk weighted exposure of head impacts in Australia Rules Football in order to better inform medical personnel in the identification and evaluation of at-risk players for concussion. The location of impacts varied considerably with the back of the head recording more total impacts than the front, side, and top. Midfielders sustained more impacts per-player, per-match, and had higher median resultant linear accelerations than forwards and defenders. The results of this study, in which most impacts were within the low severity limit for linear, rotational, HITSP, and RWECP, indicate that ARF needs to include more encompassing methods of examination of player exposure.

Item Type: Journal Article
Uncontrolled Keywords: Australian Football league, head impact biomechanics, instrumented patch, linear acceleration, rotational acceleration
Subjects: 500 Natural sciences & mathematics > 571 Physiology & related subjects
700 The arts; fine & decorative arts; recreation > 796 Athletic & outdoor sports & games
School/Department: School of Sport, Health and Applied Science
Depositing User: Kevin Sanders
Date Deposited: 25 May 2017 09:39
Last Modified: 25 May 2017 09:39
URI: http://research.stmarys.ac.uk/id/eprint/1512

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