Evidence map›Paper›PMID 35842676›Full record

ArticleBMC sports science, medicine & rehabilitation2022

Video analysis of 100 matches in male semi-professional football reveals a heading rate of 5.7 headings per field player and match.

Johannes Weber, Andreas Ernstberger, Claus Reinsberger, Daniel Popp, Michael Nerlich, Volker Alt, Werner Krutsch

Open access · goldAbstract read
In one paragraph

Article in BMC sports science, medicine & rehabilitation, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
2.2field-weighted citation impact, top 13% of its field
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

5 citing papers in PubMed, 1 synthesis or guideline pooled it, 13 citations in OpenAlex.

  1. Pooled it
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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

7 authors at 2 institutions in 1 country.

Johannes WeberDepartment of Trauma Surgery, University Medical Centre Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany. johannes1.weber@ukr.de.ORCID http://orcid.org/0000-0003-4838-9644
Andreas ErnstbergerDepartment of Trauma Surgery, University Medical Centre Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany.
Claus ReinsbergerInstitute of Sports Medicine, University of Paderborn, Paderborn, Germany.
Daniel PoppDepartment of Trauma Surgery, University Medical Centre Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany.
Michael NerlichDepartment of Trauma Surgery, University Medical Centre Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany.
Volker AltDepartment of Trauma Surgery, University Medical Centre Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany.
Werner KrutschDepartment of Trauma Surgery, University Medical Centre Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany.
University Hospital Regensburg · DEPaderborn University · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionHeading is an integral part of football and frequent media reports and previous studies about potential danger of heading and head trauma in football fuelled discussions. Epidemiological data and video analyses regarding headings situation and associated head injuries are still missing in male adult professional football.

methodsIn a prospective cohort study in the male fourth German football league, 100 official matches of the 2015-2016 season were assessed by video analysis and a standardized protocol. Heading situations and concomitant circumstances as well as incidents with a propensity of injury (critical incidents) were analyzed. Critical incidents (CI) and seasonal reported head injuries were cross-referenced.

resultsOverall, 11,514 headings were analysed in detail. Video analysis yielded a mean of 5.7 headings per player and match (SD: 1.2; range 0-15). Heading was predominantly performed with the frontal part of the head (76.8%), and nearly two thirds of all headings occurred during defending (65.8%). 71.0% of all headings occured during tacklings, of which 71.9% involved body contact with the opponent player. Video analysis yielded 31 CI on the head due to heading (incidence: 1.02 per 1000 h match exposure and player). 29 CI occurred during heading duels (odds ratio: 5.91), 30 CI with body contact (odds ratio: 28.8) and 6 CI with elbow contact (odds ratio: 6.13).

conclusionHeading frequency in male semi-professional football could be determined with a rate of 5.7 headings per match and field player. Cross referencing CI and seasonal reported head injuries revealed a very low number of reported head injuries.

Indexed as

ConcussionFootballHeadingSports medicineVideo analysis

Identifiers

PMID35842676
PMCPMC9288693
OpenAlexW4285588621

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.