Avoid common mistakes on your manuscript.
Response to Petru et al.
Sirs:
VO2RCP and relVO2max at RCP were significantly reduced for ffpm. Please find the detailed values below. The method for the quantification of ten domains of comfort/discomfort of wearing a mask (humidity, heat, breathing resistance, itchiness, tightness, saltiness, feeling unfit, odor, fatigue, and overall discomfort) is described in the manuscript.
The clear results of our study show that ventilation, cardiopulmonary exercise capacity, and comfort are reduced by surgical masks and highly impaired by FFP2/N95 face masks in healthy individuals. Future/ongoing studies need to address the effects during long-term sub-maximal physical activity and in patients with pulmonary and/or cardiac diseases.
We strongly believe that medical recommendations need to be based on evidence with regard to risk and benefit. As an example, the knowledge about adverse effects associated with many live-saving medications (e.g., immunosuppressant drugs) is a prerequisite for adequate treatment recommendations and long-term success.
VO 2RCP
nm: 2468 ± 514 ml/min
sm: 2401 ± 662 ml/min
ffpm: 2242 ± 535 ml/min
one-way ANOVA p = 0.044
nm vs. smp = 0.707
nm vs. ffpmp = 0.017
relVO 2 max at RCP
nm: 75.5 ± 5.5%
sm: 72.8 ± 7.8%
ffpm: 68.5 ± 7.2%
one-way ANOVA p = 0.034
nm vs. sm p = 0.486
nm vs. ffpm p = 0.017
Sven Fikenzer and Ulrich Laufs.
Change history
25 June 2021
A Correction to this paper has been published: https://doi.org/10.1007/s00392-021-01896-x
Author information
Authors and Affiliations
Corresponding author
Additional information
The original online version of this article was revised due to a retrospective Open Access order.
Rights and permissions
Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
About this article
Cite this article
Fikenzer, S., Laufs, U. Response to Letter to the editors referring to Fikenzer, S., Uhe, T., Lavall, D., Rudolph, U., Falz, R., Busse, M., Hepp, P., & Laufs, U. (2020). Effects of surgical and FFP2/N95 face masks on cardiopulmonary exercise capacity. Clinical research in cardiology: official journal of the German Cardiac Society, 1–9. Advance online publication. https://doi.org/10.1007/s00392-020-01704-y. Clin Res Cardiol 109, 1600 (2020). https://doi.org/10.1007/s00392-020-01736-4
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00392-020-01736-4