Evidence map›Paper›PMID 30498572›Full record

ArticleBMJ open sport & exercise medicine2018

Comparison of branded rugby headguards on their effectiveness in reducing impact on the head.

Erin R A Frizzell, Graham P Arnold, Weijie Wang, Rami J Abboud, Tim S Drew

Abstract read
In one paragraph

Article in BMJ open sport & exercise medicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

8 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Erin R A FrizzellInstitute of Motion Analysis Research (IMAR), Department of Orthopaedic and Trauma Surgery, TORT Centre, Ninewells Hospital & Medical School, University of Dundee, Dundee, Scotland.
Graham P ArnoldInstitute of Motion Analysis Research (IMAR), Department of Orthopaedic and Trauma Surgery, TORT Centre, Ninewells Hospital & Medical School, University of Dundee, Dundee, Scotland.
Weijie WangInstitute of Motion Analysis Research (IMAR), Department of Orthopaedic and Trauma Surgery, TORT Centre, Ninewells Hospital & Medical School, University of Dundee, Dundee, Scotland.
Rami J AbboudInstitute of Motion Analysis Research (IMAR), Department of Orthopaedic and Trauma Surgery, TORT Centre, Ninewells Hospital & Medical School, University of Dundee, Dundee, Scotland.
Tim S DrewInstitute of Motion Analysis Research (IMAR), Department of Orthopaedic and Trauma Surgery, TORT Centre, Ninewells Hospital & Medical School, University of Dundee, Dundee, Scotland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimTo compare the available brands of rugby headguards and evaluate their impact attenuation properties at various locations on the cranium, with regard to concussion prevention.

methodsSeven different branded headguards were fitted onto a rigid headform and drop-tested in three different positions. An accelerometer measured the linear acceleration the headform experienced on impact with the ground. Each test involved dropping the headform from a height that generated 103.8 g on average when bare, which is the closest acceleration to the upper limit of the concussion threshold of 100 g. A mean peak acceleration for each drop position was calculated and compared with the bare baseline measurement.

resultsEach headguard demonstrated a significant decrease in the mean peak acceleration from the baseline value (all p≤0.01). Overall the Canterbury Ventilator was the most effective headguard, decreasing the impact force on average by 47%. The least effective was the XBlades Elite headguard, averaging a force reduction of 27%. In five of the seven headguards, the right side of the headwear was the most effective at reducing impact force.

conclusionOverall, the results indicate that it would be beneficial to wear a headguard during rugby in order to reduce the impact forces involved in head collisions. There was also a clear difference in performance between the tested brands, establishing the Canterbury headguard as the most effective. However, only one model of headguard from each brand was tested, so further research evaluating all other models should be considered.

Indexed as

concussionheadguardhead injuryrugby

Identifiers

PMID30498572
PMCPMC6241973

What OpenQuestion holds

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LicenceCC BY-NC
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.