Evidence map›Paper›PMID 34789188›Full record

Trial reportBMC public health2021

Covid-19 transmission in fitness centers in Norway - a randomized trial.

Lise M Helsingen, Magnus Løberg, Erle Refsum, Dagrun Kyte Gjøstein, Paulina Wieszczy, Ørjan Olsvik, Frederik E Juul, Ishita Barua, Henriette C Jodal, Magnhild Herfindal and 7 more

Registry-linked trialOpen access · goldAbstract readRandomized Controlled Trial
PubMed Full text at PMC Publisher
In one paragraph

Trial report in BMC public health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04406909 (Rapid-Cycle Re-Implementation of TRAining Facilities in Norway), which is not on this map. Cited by 14 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 3 pooled it
1.3field-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.

NCT04406909 naunknown statusnot on this map

Rapid-Cycle Re-Implementation of TRAining Facilities in Norway

TypeinterventionalSponsorNorwegian Department of Health and Social AffairsRan2020 to 2022Enrolled4,000ConditionsTrainingArmsAccess to training facility
3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 3 syntheses or guidelines pooled it, 16 citations in OpenAlex.

  1. Effectiveness of social distancing measures and lockdowns for reducing transmission of COVID-19 in non-healthcare, community-based settings.Philosophical transactions. Series A, Mathematical, physical, and engineering sciences · 2023
    Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Article
  6. Article
  7. Article
  8. A review on indoor environmental quality in sports facilities: Indoor air quality and ventilation during a pandemic.Indoor + built environment : the journal of the International Society of the Built Environment · 2023
    Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Resistance Training before, during, and after COVID-19 Infection: What Have We Learned So Far?International journal of environmental research and public health · 2022
    Review
  14. Seroprevalence of antibodies against SARS-CoV-2 in the adult population during the pre-vaccination period, Norway, winter 2020/21.Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin · 2022
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

17 authors at 2 institutions in 1 country.

Lise M Helsingen *Clinical Effectiveness Research Group, University of Oslo and Oslo University Hospital, Oslo, Norway. lisemhe@medisin.uio.no.ORCID http://orcid.org/0000-0002-2055-3978
Magnus Løberg *Clinical Effectiveness Research Group, University of Oslo and Oslo University Hospital, Oslo, Norway.
Erle RefsumClinical Effectiveness Research Group, University of Oslo and Oslo University Hospital, Oslo, Norway.
Dagrun Kyte GjøsteinClinical Effectiveness Research Group, University of Oslo and Oslo University Hospital, Oslo, Norway.
Paulina WieszczyClinical Effectiveness Research Group, University of Oslo and Oslo University Hospital, Oslo, Norway.
Ørjan OlsvikInstitute of Medical Biology, Norwegian Arctic University, Tromsø, Norway.
Frederik E JuulClinical Effectiveness Research Group, University of Oslo and Oslo University Hospital, Oslo, Norway.
Ishita BaruaClinical Effectiveness Research Group, University of Oslo and Oslo University Hospital, Oslo, Norway.
Henriette C JodalClinical Effectiveness Research Group, University of Oslo and Oslo University Hospital, Oslo, Norway.
Magnhild HerfindalClinical Effectiveness Research Group, University of Oslo and Oslo University Hospital, Oslo, Norway.
Yuichi MoriClinical Effectiveness Research Group, University of Oslo and Oslo University Hospital, Oslo, Norway.
Solveig JoreNorwegian Institute of Public Health, Oslo, Norway.
Fridtjof Lund-JohansenDepartment of Immunology, Oslo University Hospital, Oslo, Norway.
Atle FretheimNorwegian Institute of Public Health, Oslo, Norway.
Michael Bretthauer *Clinical Effectiveness Research Group, University of Oslo and Oslo University Hospital, Oslo, Norway.
Mette Kalager *Clinical Effectiveness Research Group, University of Oslo and Oslo University Hospital, Oslo, Norway.
TRAiN study group
Oslo University Hospital · NONorwegian Institute of Public Health · NO

Funding

Norges Forskningsråd 312757
6 · The paper itself

Abstract

backgroundClosed fitness centers during the Covid-19 pandemic may negatively impact health and wellbeing. We assessed whether training at fitness centers increases the risk of SARS-CoV-2 virus infection.

methodsIn a two-group parallel randomized controlled trial, fitness center members aged 18 to 64 without Covid-19-relevant comorbidities, were randomized to access to training at a fitness center or no-access. Fitness centers applied physical distancing (1 m for floor exercise, 2 m for high-intensity classes) and enhanced hand and surface hygiene. Primary outcomes were SARS-CoV-2 RNA status by polymerase chain reaction (PCR) after 14 days, hospital admission after 21 days. The secondary endpoint was SARS-CoV-2 antibody status after 1 month.

results3764 individuals were randomized; 1896 to the training arm and 1868 to the no-training arm. In the training arm, 81.8% trained at least once, and 38.5% trained ≥six times. Of 3016 individuals who returned the SARS-CoV-2 RNA tests (80.5%), there was one positive test in the training arm, and none in the no-training arm (risk difference 0.053%; 95% CI - 0.050 to 0.156%; p = 0.32). Eleven individuals in the training arm (0.8% of tested) and 27 in the no-training arm (2.4% of tested) tested positive for SARS-CoV-2 antibodies (risk difference - 0.87%; 95%CI - 1.52% to - 0.23%; p = 0.001). No outpatient visits or hospital admissions due to Covid-19 occurred in either arm.

conclusionProvided good hygiene and physical distancing measures and low population prevalence of SARS-CoV-2 infection, there was no increased infection risk of SARS-CoV-2 in fitness centers in Oslo, Norway for individuals without Covid-19-relevant comorbidities.

trial registrationThe trial was prospectively registered in ClinicalTrials.gov on May 13, 2020. Due to administrative issues it was first posted on the register website on May 29, 2020: NCT04406909 .

Indexed as

COVID-19Fitness CentersHumansPandemicsRNA, ViralSARS-CoV-2Treatment OutcomeRNA, Viral

Identifiers

PMID34789188
PMCPMC8595959
OpenAlexW3211727481

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.