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

Autor:	Helsingen LM; Clinical Effectiveness Research Group, University of Oslo and Oslo University Hospital, Oslo, Norway. lisemhe@medisin.uio.no., Løberg M; Clinical Effectiveness Research Group, University of Oslo and Oslo University Hospital, Oslo, Norway., Refsum E; Clinical Effectiveness Research Group, University of Oslo and Oslo University Hospital, Oslo, Norway., Gjøstein DK; Clinical Effectiveness Research Group, University of Oslo and Oslo University Hospital, Oslo, Norway., Wieszczy P; Clinical Effectiveness Research Group, University of Oslo and Oslo University Hospital, Oslo, Norway., Olsvik Ø; Institute of Medical Biology, Norwegian Arctic University, Tromsø, Norway., Juul FE; Clinical Effectiveness Research Group, University of Oslo and Oslo University Hospital, Oslo, Norway., Barua I; Clinical Effectiveness Research Group, University of Oslo and Oslo University Hospital, Oslo, Norway., Jodal HC; Clinical Effectiveness Research Group, University of Oslo and Oslo University Hospital, Oslo, Norway., Herfindal M; Clinical Effectiveness Research Group, University of Oslo and Oslo University Hospital, Oslo, Norway., Mori Y; Clinical Effectiveness Research Group, University of Oslo and Oslo University Hospital, Oslo, Norway., Jore S; Norwegian Institute of Public Health, Oslo, Norway., Lund-Johansen F; Department of Immunology, Oslo University Hospital, Oslo, Norway., Fretheim A; Norwegian Institute of Public Health, Oslo, Norway., Bretthauer M; Clinical Effectiveness Research Group, University of Oslo and Oslo University Hospital, Oslo, Norway., Kalager M; Clinical Effectiveness Research Group, University of Oslo and Oslo University Hospital, Oslo, Norway.
Jazyk:	angličtina
Zdroj:	BMC public health [BMC Public Health] 2021 Nov 16; Vol. 21 (1), pp. 2103. Date of Electronic Publication: 2021 Nov 16.
DOI:	10.1186/s12889-021-12073-0
Abstrakt:	Background: Closed 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. Methods: In 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. Results: 3764 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. Conclusion: Provided 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 Registration: The 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 . (© 2021. The Author(s).)
Databáze:	MEDLINE
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