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Archives of General Internal Medicine | ISSN: 2591-7951 | Volume 3
SPORTS RELATED CONCUSSION
A
ccelerometer devices will quantify the magnitude of head impacts
throughout sport to determine potential for brain injury. There aren’t
any printed head impact knowledge for rugger league. The main objec-
tive of this study was to quantify head impacts for amateur senior rugby
league players to ascertain potential for brain injury. Data on head impact
magnitude, frequency and distribution were collected with instrument-
ed behind-the-ear XPatches (accelerometers) worn by 42 premier senior
amateur rugby league players participating in 2014 and 2015 domestic
seasons of matches. During the study there have been twenty,837 im-
pacts >10g recorded. The mean number of impacts per player over the
season was 672±237 resulting in 52±79 impacts to the head per player,
per match. Players recorded a median [IQR] linear (14 [10 to 23] g) and
rotational (3,181 [1830 to 5,612] rad/s2) accelerations over the study.
Over the study there have been 103 impacts (0.5%) for linear accelera-
tion and four, 505 impacts (22%) for movement acceleration, on top of
antecedently printed linear and movement injury tolerance thresholds.
The median peak linear acceleration of 14g was lower, while the median
rotational acceleration of 3,181 rad/s2 was higher than the medians re-
ported in American high school football, collegiate football and youth ice
hockey. The potential for brain injury in rugby league players as indicat-
ed by head impact acceleration is likely similar to American football and
rugby union. Given world-wide growth of rugby codes, sports clinicians
need to be aware of the potential for head injury and likely concussion
prevention and management options.
Trevor Clark, Arch Gen Intern Med 2019, Volume 3
DOI: 10.4066/2591-7951-C2-025
Trevor Clark is a proud Kiwi (New Zealander),
currently based in Sydney Olympic Park at the
Australian College of Physical Education where
he is Head of Department, Sport Performance
and Sport Business. He oversees bachelor degree
programs in coaching (strength and condition-
ing) and (management) and one each in applied
fitness and business leadership. He also manag-
es a post graduate diploma in sports adminis-
tration. He maintains strong affiliations with his
industry and holds elite level accreditations with
the Australian Strength and Conditioning Asso-
ciation and Exercise and Sport Science Australia.
However his passion still revolves around rugby
league which has a very strong presence in Syd-
ney and Australia.
trev.waves@yahoo.com.auTrevor Clark
Massey University, New Zealand
BIOGRAPHY