Evidence map›Paper›PMID 33538997›Full record

SynthesisSports medicine (Auckland, N.Z.)2021

Epidemiology of Injury and Illness Among Trail Runners: A Systematic Review.

Carel T Viljoen, Dina C Janse van Rensburg, Evert Verhagen, Willem van Mechelen, Rita Tomás, Marlene Schoeman, Susan Scheepers, Elzette Korkie

Erratum issuedAbstract readSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Sports medicine (Auckland, N.Z.), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 13 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 2 pooled it
3.6field-weighted citation impact, top 6% 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

13 citing papers in PubMed, 2 syntheses or guidelines pooled it, 54 citations in OpenAlex.

  1. Female trail running: a systematic scoping review.Frontiers in sports and active living · 2025
    Pooled it
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  3. Review
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  13. Frequency of Injury and Illness in the Final 4 Weeks before a Trail Running Competition.International journal of environmental research and public health · 2021
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 4 institutions in 5 countries.

Carel T ViljoenDepartment of Physiotherapy, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa. carel.viljoen@up.ac.za.ORCID http://orcid.org/0000-0002-3548-5509
Dina C Janse van RensburgSport, Exercise Medicine and Lifestyle Institute (SEMLI), Hillcrest Campus, University of Pretoria, Burnett Street, Hatfield, Pretoria, 0002, South Africa.ORCID http://orcid.org/0000-0003-1058-6992
Evert VerhagenAmsterdam Collaboration for Health and Safety in Sports, Department of Public and Occupational Health, Amsterdam Movement Sciences, Amsterdam University Medical Centers, Location VU University Medical Center, Amsterdam, The Netherlands.ORCID https://orcid.org/0000-0001-9227-8234
Willem van MechelenAmsterdam Collaboration for Health and Safety in Sports, Department of Public and Occupational Health, Amsterdam Movement Sciences, Amsterdam University Medical Centers, Location VU University Medical Center, Amsterdam, The Netherlands.ORCID https://orcid.org/0000-0001-7136-6382
Rita TomásPortugal Football School, Portuguese Football Federation, Lisbon, Portugal.ORCID https://orcid.org/0000-0001-6070-4964
Marlene SchoemanSection Sports Medicine, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa.ORCID https://orcid.org/0000-0002-1583-1881
Susan ScheepersDepartment of Library Services, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa.ORCID https://orcid.org/0000-0003-3900-7077
Elzette KorkieDepartment of Physiotherapy, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa.ORCID https://orcid.org/0000-0002-0302-0491
University of Pretoria · ZAAmsterdam University Medical Centers · NLSport Lisboa e Benfica · PTUniversity College Dublin · IE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTrail running is characterised by large elevation gains/losses and uneven varying running surfaces. Limited information is available on injury and illness among trail runners to help guide injury and illness prevention strategies.

objectiveThe primary aim of this review was to describe the epidemiology of injury and illness among trail runners.

methodsEight electronic databases were systematically searched (MEDLINE Ovid, PubMed, Scopus, SportsDiscus, CINAHL, Health Source: Nursing/Academic, Health Source: Consumer Ed., and Cochrane) from inception to November 2020. The search was conducted according to the PRISMA statement and the study was registered on PROSPERO international prospective register of systematic reviews (CRD42019135933). Full-text English and French studies that investigated injury and/or illness among trail runners participating in training/racing were included. The main outcome measurements included: trail running injury (incidence, prevalence, anatomical site, tissue type, pathology-type/specific diagnosis, severity), and illness (incidence, prevalence, symptoms, specific diagnosis, organ system, severity). The methodological quality of the included studies was assessed using an adapted Downs and Black assessment tool.

resultsSixteen studies with 8644 participants were included. Thirteen studies investigated race-related injury and/or illness and three studies included training-related injuries. The overall incidence range was 1.6-4285.0 injuries per 1000 h of running and 65.0-6676.6 illnesses per 1000 h of running. The foot was the most common anatomical site of trail running injury followed by the knee, lower leg, thigh, and ankle. Skin lacerations/abrasions were the most common injury diagnoses followed by skin blisters, muscle strains, muscle cramping, and ligament sprains. The most common trail running illnesses reported related to the gastro-intestinal tract (GIT), followed by the metabolic, and cardiovascular systems. Symptoms of nausea and vomiting related to GIT distress and dehydration were commonly reported.

conclusionCurrent trail running literature consists mainly of injury and illness outcomes specifically in relation to single-day race participation events. Limited evidence is available on training-related injury and illness in trail running. Our review showed that injury and illness are common among trail runners, but certain studies included in this review only focused on dermatological injuries (e.g. large number of feet blisters) and GIT symptoms. Specific areas for future research were identified that could improve the management of trail running injury and illness.

Indexed as

RunningSprains and StrainsFootHumansIncidencePrevalence

Identifiers

PMID33538997
OpenAlexW3127096613

What OpenQuestion holds

Textmetadata
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.