Evidence map›Paper›PMID 30787077›Full record

ArticleBMJ open2019

Playing football on artificial turf as a risk factor for fifth metatarsal stress fracture: a retrospective cohort study.

Takayuki Miyamori, Masashi Nagao, Ryuichi Sawa, Steve Tumilty, Masafumi Yoshimura, Yoshitomo Saita, Hiroshi Ikeda, Kazuo Kaneko

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 2 pooled it
1.9field-weighted citation impact, top 17% 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

12 citing papers in PubMed, 2 syntheses or guidelines pooled it, 22 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Hip internal rotation restriction and heel raise mechanics as risk factors for Jones fractures in youth football players.Asia-Pacific journal of sports medicine, arthroscopy, rehabilitation and technology · 2025
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  9. Uncommon Bone Injuries in Soccer Players.Journal of human kinetics · 2021
    Article
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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

8 authors at 3 institutions in 2 countries.

Takayuki MiyamoriDepartment of Health and Welfare, School of Physical Therapy, International University of Health and Welfare, Narita, Japan.
Masashi NagaoJones Fracture Research Group, Tokyo, Japan.ORCID 0000-0002-8909-4650
Ryuichi SawaDepartment of Health and Welfare, School of Physical Therapy, International University of Health and Welfare, Narita, Japan.
Steve TumiltyCentre for Health, Activity and Rehabilitation Research, University of Otago, Dunedin, New Zealand.
Masafumi YoshimuraGraduate School of Health and Sports Science, Juntendo University, Chiba, Japan.
Yoshitomo SaitaJones Fracture Research Group, Tokyo, Japan.
Hiroshi IkedaDepartment of Orthopaedics and Sports Medicine, Juntendo University, Tokyo, Japan.
Kazuo KanekoDepartment of Orthopaedics and Sports Medicine, Juntendo University, Tokyo, Japan.
Juntendo University · JPInternational University of Health and Welfare · JPUniversity of Otago · NZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe fifth metatarsal stress fracture is a common injury among football players. Although several risk factors have been proposed, the association between the playing surface and development of fifth metatarsal stress fractures (MT-5) has not been evaluated. We conducted an epidemiological study using a computer-based survey to investigate the association between the playing surface and development of MT-5.

methodsThis study included 1854 football players, of which 41 experienced MT-5 within the past 24 months. Baseline demographic data and the percentage of time spent playing on artificial turf and clay fields were compared between the non-MT-5 and MT-5 player groups, and the risks for development of MT-5 associated with the playing surfaces were estimated by univariate and multivariate analyses.

resultsThere were significant differences in body mass index, years of play, playing categories and playing time on artificial turf between non-MT-5 and MT-5 groups (p<0.05). Generalised estimating equations analyses adjusted for multiple confounders demonstrated that relative to the risk of playing <20% of the time on each surface, the OR (OR: 95% CI) for MT-5 for playing on artificial turf >80% of the time increased (3.44: 1.65 to 7.18), and for playing on a clay field 61%-80% of the time, the OR decreased (0.25: 0.11 to 0.59).

conclusionsA higher percentage of playing time on an artificial turf was a risk factor for developing MT-5 in football players. This finding could be beneficial for creating strategies to prevent MT-5.

Indexed as

AdolescentAdultBody Mass IndexCase-Control StudiesChildFemaleFloors and FloorcoveringsFractures, StressHumansJapanMaleMetatarsal BonesMiddle AgedRetrospective StudiesRisk FactorsSoccerartificial turffifth metatarsal stress fracturefootball

Identifiers

PMID30787077
PMCPMC6398723
OpenAlexW2916539761

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.