Evidence map›Paper›PMID 29273936›Full record

Trial reportSports medicine (Auckland, N.Z.)2018

A Multinational Cluster Randomised Controlled Trial to Assess the Efficacy of '11+ Kids': A Warm-Up Programme to Prevent Injuries in Children's Football.

Roland Rössler, Astrid Junge, Mario Bizzini, Evert Verhagen, Jiri Chomiak, Karen Aus der Fünten, Tim Meyer, Jiri Dvorak, Eric Lichtenstein, Florian Beaudouin and 1 more

Registry-linked trialAbstract readRandomized Controlled Trial
PubMed Full text at PMC Publisher
In one paragraph

Trial report in Sports medicine (Auckland, N.Z.), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02222025 (Injury Prevention in Children´s Football), which is not on this map. Cited by 61 papers, 17 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
61citing papers in PubMed, 17 pooled it
–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.

NCT02222025 nacompletednot on this map

Injury Prevention in Children´s Football (FIFA 11+ Kids): a Cluster-randomized Controlled Trial

TypeinterventionalSponsorUniversity of BaselRan2014 to 2015Enrolled3,895ConditionsFootball Injuries in ChildrenArmsInjury Prevention Programme
3 · Its place in the literature

Who cites it

61 citing papers in PubMed, 17 syntheses or guidelines pooled it.

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1 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors.

Roland RösslerDepartment of Sport, Exercise and Health, University of Basel, Birsstrasse 320 B, 4052, Basel, Switzerland. roland.roessler@unibas.ch.ORCID 0000-0002-6763-0694
Astrid JungeSwiss Concussion Center, Zurich, Switzerland.
Mario BizziniSwiss Concussion Center, Zurich, Switzerland.
Evert VerhagenAmsterdam Collaboration on Health & Safety in Sports and Department of Public and Occupational Health, Amsterdam Movement Science, VU University Medical Center, Amsterdam, Netherlands.
Jiri ChomiakOrthopaedic Department 1st Faculty of Medicine Charles University and IPVZ and Hospital Na Bulovce and FIFA med. Centre, Prague Czech Republic, Prague, Czech Republic.
Karen Aus der FüntenInstitute of Sports and Preventive Medicine, Saarland University, Saarbrücken, Germany.
Tim MeyerInstitute of Sports and Preventive Medicine, Saarland University, Saarbrücken, Germany.
Jiri DvorakSwiss Concussion Center, Zurich, Switzerland.
Eric LichtensteinDepartment of Sport, Exercise and Health, University of Basel, Birsstrasse 320 B, 4052, Basel, Switzerland.
Florian BeaudouinInstitute of Sports and Preventive Medicine, Saarland University, Saarbrücken, Germany.
Oliver FaudeDepartment of Sport, Exercise and Health, University of Basel, Birsstrasse 320 B, 4052, Basel, Switzerland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe objective of this study was to assess the efficacy of a newly developed warm-up programme ('11+ Kids') regarding its potential to reduce injuries in children's football.

methodsChildren's football teams (under 9 years, under 11 years, and under 13 years age groups) from Switzerland, Germany, the Czech Republic and the Netherlands were invited. Clubs were randomised to an intervention group and a control group, and followed for one season. The intervention group replaced their usual warm-up by '11+ Kids', while the control group warmed up as usual. The primary outcome was the overall risk of football-related injuries. Secondary outcomes were the risks of severe and lower extremity injuries. We calculated hazard ratios using extended Cox models, and performed a compliance analysis.

resultsIn total, 292,749 h of football exposure of 3895 players were recorded. The mean age of players was 10.8 (standard deviation 1.4) years. During the study period, 374 (intervention group = 139; control group = 235) injuries occurred. The overall injury rate in the intervention group was reduced by 48% compared with the control group (hazard ratio 0.52; 95% confidence interval 0.32-0.86). Severe (74% reduction, hazard ratio 0.26; 95% confidence interval 0.10-0.64) and lower extremity injuries (55% reduction, hazard ratio 0.45; 95% confidence interval 0.24-0.84) were also reduced. Injury incidence decreased with increasing compliance.

conclusion'11+ Kids' is efficacious in reducing injuries in children's football. We observed considerable effects for overall, severe and lower extremity injuries. The programme should be performed at least once per week to profit from an injury preventive effect. However, two sessions per week can be recommended to further increase the protective benefit.

trial registrationClinicalTrials.gov identifier: NCT02222025.

Indexed as

Athletic InjuriesChildFootballHumansLeg InjuriesPhysical FitnessSoccerWarm-Up Exercise

Identifiers

PMID29273936
PMCPMC5948238

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Registered trials

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.