Evaluation of the breathing mode by infrared thermography
Objectives To analyze breathing modes with infrared thermography. Methods Cross-sectional observational exploratory study conducted in 20 female participants with a mean age of 26.0-years. The thermograms were made following the principles of the American Academy of Thermology and the Brazilian Ther...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2023 |
| País: | Brasil |
| Institución: | Universidade Federal de Minas Gerais (UFMG) |
| Repositorio: | Repositório Institucional da UFMG |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.ufmg.br:1843/80150 |
| Acceso en línea: | https://doi.org/10.1016/j.bjorl.2023.101333 http://hdl.handle.net/1843/80150 https://orcid.org/0000-0002-3758-5247 https://orcid.org/0000-0001-7588-9316 https://orcid.org/0000-0003-0629-6140 https://orcid.org/0000-0002-1582-3785 https://orcid.org/0000-0001-8328-160X |
| Access Level: | acceso abierto |
| Palabra clave: | Thermography Respiration Mouth breathing Nose Mouth Nariz Respiração Respiração bucal Boca |
| Sumario: | Objectives To analyze breathing modes with infrared thermography. Methods Cross-sectional observational exploratory study conducted in 20 female participants with a mean age of 26.0-years. The thermograms were made following the principles of the American Academy of Thermology and the Brazilian Thermology Society. The camera FLIR A315 (FLIR Inc., Santa Barbara, CA) was used for the tests. The recordings consisted of the participants breathing normally through the nose for 2 min and simulating oral/oronasal breathing for another 2 min. The thermograms were analyzed with the FLIR Tools software. An ellipse was placed between the nostrils and the lip commissures to obtain the mean temperatures. The collection was made by two independent researchers, and the normalized non-dimensional temperature was calculated. Results The temperature in nasal breathing is higher than in oral/oronasal breathing both for inhaling and exhaling when measured in the region of the mouth. The exhaling temperatures were higher than the inhaling ones in oral/oronasal breathing (through the nose and the mouth) and nasal breathing (only through the nose). The temperature difference between exhaling and inhaling (ΔT) was greater in oral/oronasal breathing when measured in the region of the mouth. Conclusion The thermographic assessment of breathing modes may be made by comparing the mean temperatures of the mouth, using an ellipse. Level of evidence Study without consistently applied reference standards. |
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