Physiological impact of different types of mask at rest
Introduction: Due to the mandatory use of a mask in the context of the Covid-19 pandemic, we set out to evaluate the physiological impact of hypoxia and hypercapnia generated by different masks at rest. Methods: Thirty-two competitive adolescent athletes (40% female) were evaluated. Room air and int...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-07-01
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| Series: | Apunts Sports Medicine |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666506922000116 |
| _version_ | 1811194821763661824 |
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| author | Ignasi de Yzaguirre i Maura Diego Dulanto Zabala Daniel Brotons i Cuixart J. Antoni Gutierrez Rincon Joan Vives i Turcó Gonzalo Grazioli |
| author_facet | Ignasi de Yzaguirre i Maura Diego Dulanto Zabala Daniel Brotons i Cuixart J. Antoni Gutierrez Rincon Joan Vives i Turcó Gonzalo Grazioli |
| author_sort | Ignasi de Yzaguirre i Maura |
| collection | DOAJ |
| description | Introduction: Due to the mandatory use of a mask in the context of the Covid-19 pandemic, we set out to evaluate the physiological impact of hypoxia and hypercapnia generated by different masks at rest. Methods: Thirty-two competitive adolescent athletes (40% female) were evaluated. Room air and intra-mask measurements were taken at rest while sitting in a chair. A spirometric study was performed and the intra-mask concentration of O2 and CO2 was evaluated, comparing 3 situations: a) Home (H): mask that the subject was wearing from home. b) Surgical (S): surgical mask. c) KN95 mask (KN95). Results: The ambient air in the laboratory was: O2: 20.9% and CO2: 544 ± 67 ppm (0.05%); Intra-mask O2: H: 17.8 ± 0.72 %; S: 17.08 ± 0.62 %; KN95: 16.8 ± 0.56 %; (H vs S: ns; H vs NK95: p <0.001; S vs KN95: p <0.002). Intra-mask CO2: H: 1.81 ± 0.52 %; S 1.92 ± 0.35 %; KN95: 2.07 ± 0.36%; (H vs S: ns; H vs NK95: p <0.001; S vs KN95: p <0.012). CO2 levels with KN95 were lower in men 1.97 ± 0.37 % vs 2.2 ± 0.29 % than in women (p<0.04), with a significant correlation between gender and weight (r: 0.98, p: 0.01) and height (r: 0.78, p: 0.01). Conclusions: The KN95 mask presented a lower concentration of O2, and a higher concentration of CO2 compared to the baseline situation with the surgical masks and those home-made. There is a difference in CO2 between the sexes when the KN95 mask was used, in relation to weight and height. |
| first_indexed | 2024-04-12T00:33:55Z |
| format | Article |
| id | doaj.art-4b790a906a0f42cb98f8b13f2418d812 |
| institution | Directory Open Access Journal |
| issn | 2666-5069 |
| language | English |
| last_indexed | 2024-04-12T00:33:55Z |
| publishDate | 2022-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Apunts Sports Medicine |
| spelling | doaj.art-4b790a906a0f42cb98f8b13f2418d8122022-12-22T03:55:14ZengElsevierApunts Sports Medicine2666-50692022-07-0157215100389Physiological impact of different types of mask at restIgnasi de Yzaguirre i Maura0Diego Dulanto Zabala1Daniel Brotons i Cuixart2J. Antoni Gutierrez Rincon3Joan Vives i Turcó4Gonzalo Grazioli5Unitat d'Esport i Salut. Generalitat de Catalunya, Spain; Corresponding author.Hospital Universitario Basurto, Bilbao, SpainUnitat d'Esport i Salut. Generalitat de Catalunya, SpainServeis medics Futbol Club Barcelona, SpainUnitat d'Esport i Salut. Generalitat de Catalunya, SpainÀptima Centre Clínic, Mutua Terrassa, SpainIntroduction: Due to the mandatory use of a mask in the context of the Covid-19 pandemic, we set out to evaluate the physiological impact of hypoxia and hypercapnia generated by different masks at rest. Methods: Thirty-two competitive adolescent athletes (40% female) were evaluated. Room air and intra-mask measurements were taken at rest while sitting in a chair. A spirometric study was performed and the intra-mask concentration of O2 and CO2 was evaluated, comparing 3 situations: a) Home (H): mask that the subject was wearing from home. b) Surgical (S): surgical mask. c) KN95 mask (KN95). Results: The ambient air in the laboratory was: O2: 20.9% and CO2: 544 ± 67 ppm (0.05%); Intra-mask O2: H: 17.8 ± 0.72 %; S: 17.08 ± 0.62 %; KN95: 16.8 ± 0.56 %; (H vs S: ns; H vs NK95: p <0.001; S vs KN95: p <0.002). Intra-mask CO2: H: 1.81 ± 0.52 %; S 1.92 ± 0.35 %; KN95: 2.07 ± 0.36%; (H vs S: ns; H vs NK95: p <0.001; S vs KN95: p <0.012). CO2 levels with KN95 were lower in men 1.97 ± 0.37 % vs 2.2 ± 0.29 % than in women (p<0.04), with a significant correlation between gender and weight (r: 0.98, p: 0.01) and height (r: 0.78, p: 0.01). Conclusions: The KN95 mask presented a lower concentration of O2, and a higher concentration of CO2 compared to the baseline situation with the surgical masks and those home-made. There is a difference in CO2 between the sexes when the KN95 mask was used, in relation to weight and height.http://www.sciencedirect.com/science/article/pii/S2666506922000116HypoxiaHypercapniaRarefied airFace maskRespiratory dead spaceCOVID-19 |
| spellingShingle | Ignasi de Yzaguirre i Maura Diego Dulanto Zabala Daniel Brotons i Cuixart J. Antoni Gutierrez Rincon Joan Vives i Turcó Gonzalo Grazioli Physiological impact of different types of mask at rest Apunts Sports Medicine Hypoxia Hypercapnia Rarefied air Face mask Respiratory dead space COVID-19 |
| title | Physiological impact of different types of mask at rest |
| title_full | Physiological impact of different types of mask at rest |
| title_fullStr | Physiological impact of different types of mask at rest |
| title_full_unstemmed | Physiological impact of different types of mask at rest |
| title_short | Physiological impact of different types of mask at rest |
| title_sort | physiological impact of different types of mask at rest |
| topic | Hypoxia Hypercapnia Rarefied air Face mask Respiratory dead space COVID-19 |
| url | http://www.sciencedirect.com/science/article/pii/S2666506922000116 |
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