Evidence map›Paper›PMID 27815238›Full record

ArticleBritish journal of sports medicine2017

Strategies and factors associated with preparing for competing in the heat: a cohort study at the 2015 IAAF World Athletics Championships.

Julien D Périard, Sébastien Racinais, Toomas Timpka, Örjan Dahlström, Armin Spreco, Jenny Jacobsson, Victor Bargoria, Karin Halje, Juan-Manuel Alonso

Open access · hybridAbstract read
In one paragraph

Article in British journal of sports medicine, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 2 pooled it
7.2field-weighted citation impact, top 2% 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

42 citing papers in PubMed, 2 syntheses or guidelines pooled it, 102 citations in OpenAlex.

  1. Pooled it
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  14. Sex Differences in Endurance Running.Sports medicine (Auckland, N.Z.) · 2022
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  20. Integrative cardiovascular control in women: Regulation of blood pressure, body temperature, and cerebrovascular responsiveness.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2021
    Review
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

9 authors at 2 institutions in 3 countries.

Julien D PériardAthlete Health and Performance Research Centre, Aspetar Orthopaedic and Sports Medicine Hospital, Doha, Qatar.
Sébastien RacinaisAthlete Health and Performance Research Centre, Aspetar Orthopaedic and Sports Medicine Hospital, Doha, Qatar.
Toomas TimpkaAthletics Research Center, Linköping University, Linköping, Sweden.ORCID http://orcid.org/0000-0001-6049-5402
Örjan DahlströmAthletics Research Center, Linköping University, Linköping, Sweden.
Armin SprecoAthletics Research Center, Linköping University, Linköping, Sweden.
Jenny JacobssonAthletics Research Center, Linköping University, Linköping, Sweden.ORCID http://orcid.org/0000-0002-1551-1722
Victor BargoriaAthletics Research Center, Linköping University, Linköping, Sweden.
Karin HaljeAthletics Research Center, Linköping University, Linköping, Sweden.
Juan-Manuel AlonsoSports Medicine Department, Aspetar Orthopaedic and Sports Medicine Hospital, Doha, Qatar.
Linköping University · SEQatar Orthopaedic and Sports Medicine Hospital · QA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeAssess exertional heat illness (EHI) history and preparedness in athletes competing in a World Athletics Championships under hot/humid conditions and identify the factors associated with preparedness strategies.

methodsOf the 207 registered national teams invited to participate in the study, 50 (24%) accepted. The 957 athletes (49% of all 1965 registered) in these teams were invited to complete a precompetition questionnaire evaluating EHI history, heat stress prevention (heat acclimatisation, precooling and hydration) and recovery. Responses from 307 (32%) athletes were separated in field events, sprints, middle-distance and long-distance running, and decathlon/heptathlon for analysis.

results48% of athletes had previously experienced EHI symptoms and 8.5% had been diagnosed with EHI. 15% heat acclimatised (∼20 days) before the championships. 52% had a precooling strategy, ice slurry ingestion (24%) being the most prevalent and women using it more frequently than men (p=0.005). 96% of athletes had a fluid consumption strategy, which differed between event categories (p<0.001). The most common volumes planned on being consumed were 0.5-1 L (27.2%) and ≥2 L (21.8%), water being the most frequent. 89% of athletes planned on using at least one recovery strategy. Female sex (p=0.024) and a previous EHI diagnosis increased the likelihood of using all 3 prevention strategies (p<0.001).

conclusionsAt a World Championships with expected hot/humid conditions, less than one-fifth of athletes heat acclimatised, half had a precooling strategy and almost all a hydration plan. Women, and especially athletes with an EHI history, were more predisposed to use a complete heat stress prevention strategy. More information regarding heat acclimatisation should be provided to protect athlete health and optimise performance at major athletics competitions in the heat.

Indexed as

Hot TemperatureAcclimatizationAthletesBody TemperatureCohort StudiesDrinking BehaviorFemaleHeat Stress DisordersHumansMaleRunningSurveys and QuestionnairesTrack and FieldElite performanceExertional heat stressHeat acclimatisationHydration

Identifiers

PMID27815238
PMCPMC5318647
OpenAlexW2548516428

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.