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Gazzetta Medica Italiana - Archivio per le Scienze Mediche 2021 November;180(11):771-6
DOI: 10.23736/S0393-3660.21.04666-0
Copyright © 2021 EDIZIONI MINERVA MEDICA
language: English
The effect of respiratory protective masks on ventilatory efficiency and operating lung volumes in a recreational runner
Danilo M. PRADO 1, 2 ✉, Francisco DRAGONE 1, Acácio S. VERAS-SILVA 3, Sérgio L. RIBEIRO 3, Dionis C. MACHADO 3, Cirley P. FERREIRA 4, Valmir O. SILVINO 4, Marcos A. SANTOS 4
1 Ultra Sports Laboratory, São Paulo, Brazil; 2 School of Medicine, Heart Institute, University of São Paulo, São Paulo, Brazil; 3 Department of Physiology and Biophysics, Federal University of Piauí, Piauí, Brazil; 4 Department of Physiology and Biophysics, Study Group in Physiology Applied to Performance and Health (NEFADS), Federal University of Piauí, Piauí, Brazil
We evaluated the effect of different respiratory protective masks (RPM) on ventilatory efficiency and operating lung volumes in a recreational runner. A healthy 36-years-old male runner underwent a pulmonary function test and cardiorespiratory exercise test with different RPM types and no mask (NM). Lung volumes and airflow resistance were similar regarding surgical and 3D knit masks compared to NM. Lower functional vital capacity and forced expiratory volume in 1 second were observed for N95 compared to NM. Regarding ventilatory efficiency analysis, lower values for VE/VCO
KEY WORDS: Respiratory insufficiency; Respiratory protective devices; Running; COVID-19