The tiny effects of respiratory masks on physiological, subjective, and behavioral measures under mental load in a randomized controlled trial

Abstract Since the outbreak of the coronavirus disease (COVID-19), face coverings are recommended to diminish person-to-person transmission of the SARS-CoV-2 virus. Some public debates concern claims regarding risks caused by wearing face masks, like, e.g., decreased blood oxygen levels and impaired...

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Main Authors: Robert P. Spang, Kerstin Pieper
Format: Article
Language:English
Published: Nature Portfolio 2021-10-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-021-99100-7
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author Robert P. Spang
Kerstin Pieper
author_facet Robert P. Spang
Kerstin Pieper
author_sort Robert P. Spang
collection DOAJ
description Abstract Since the outbreak of the coronavirus disease (COVID-19), face coverings are recommended to diminish person-to-person transmission of the SARS-CoV-2 virus. Some public debates concern claims regarding risks caused by wearing face masks, like, e.g., decreased blood oxygen levels and impaired cognitive capabilities. The present, pre-registered study aims to contribute clarity by delivering a direct comparison of wearing an N95 respirator and wearing no face covering. We focused on a demanding situation to show that cognitive efficacy and individual states are equivalent in both conditions. We conducted a randomized-controlled crossover trial with 44 participants. Participants performed the task while wearing an N95 FFR versus wearing none. We measured physiological (blood oxygen saturation and heart rate variability), behavioral (parameters of performance in the task), and subjective (perceived mental load) data to substantiate our assumption as broadly as possible. We analyzed data regarding both statistical equivalence and differences. All of the investigated dimensions showed statistical equivalence given our pre-registered equivalence boundaries. None of the dimensions showed a significant difference between wearing an FFR and not wearing an FFR. Trial Registration: Preregistered with the Open Science Framework: https://osf.io/c2xp5 (15/11/2020). Retrospectively registered with German Clinical Trials Register: DRKS00024806 (18/03/2021).
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spelling doaj.art-23791c9df5db470692c2fb2bc577a8942022-12-21T23:37:30ZengNature PortfolioScientific Reports2045-23222021-10-0111111110.1038/s41598-021-99100-7The tiny effects of respiratory masks on physiological, subjective, and behavioral measures under mental load in a randomized controlled trialRobert P. Spang0Kerstin Pieper1Quality and Usability Lab, Institute of Software Engineering and Theoretical Computer Science, Electrical Engineering and Computer Science, Technical University of BerlinQuality and Usability Lab, Institute of Software Engineering and Theoretical Computer Science, Electrical Engineering and Computer Science, Technical University of BerlinAbstract Since the outbreak of the coronavirus disease (COVID-19), face coverings are recommended to diminish person-to-person transmission of the SARS-CoV-2 virus. Some public debates concern claims regarding risks caused by wearing face masks, like, e.g., decreased blood oxygen levels and impaired cognitive capabilities. The present, pre-registered study aims to contribute clarity by delivering a direct comparison of wearing an N95 respirator and wearing no face covering. We focused on a demanding situation to show that cognitive efficacy and individual states are equivalent in both conditions. We conducted a randomized-controlled crossover trial with 44 participants. Participants performed the task while wearing an N95 FFR versus wearing none. We measured physiological (blood oxygen saturation and heart rate variability), behavioral (parameters of performance in the task), and subjective (perceived mental load) data to substantiate our assumption as broadly as possible. We analyzed data regarding both statistical equivalence and differences. All of the investigated dimensions showed statistical equivalence given our pre-registered equivalence boundaries. None of the dimensions showed a significant difference between wearing an FFR and not wearing an FFR. Trial Registration: Preregistered with the Open Science Framework: https://osf.io/c2xp5 (15/11/2020). Retrospectively registered with German Clinical Trials Register: DRKS00024806 (18/03/2021).https://doi.org/10.1038/s41598-021-99100-7
spellingShingle Robert P. Spang
Kerstin Pieper
The tiny effects of respiratory masks on physiological, subjective, and behavioral measures under mental load in a randomized controlled trial
Scientific Reports
title The tiny effects of respiratory masks on physiological, subjective, and behavioral measures under mental load in a randomized controlled trial
title_full The tiny effects of respiratory masks on physiological, subjective, and behavioral measures under mental load in a randomized controlled trial
title_fullStr The tiny effects of respiratory masks on physiological, subjective, and behavioral measures under mental load in a randomized controlled trial
title_full_unstemmed The tiny effects of respiratory masks on physiological, subjective, and behavioral measures under mental load in a randomized controlled trial
title_short The tiny effects of respiratory masks on physiological, subjective, and behavioral measures under mental load in a randomized controlled trial
title_sort tiny effects of respiratory masks on physiological subjective and behavioral measures under mental load in a randomized controlled trial
url https://doi.org/10.1038/s41598-021-99100-7
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