Lung Diffusion in a 14-Day Swimming Altitude Training Camp at 1850 Meters
Swimming exercise at sea level causes a transient decrease in lung diffusing capacity for carbon monoxide (DL<sub>CO</sub>). The exposure to hypobaric hypoxia can affect lung gas exchange, and hypoxic pulmonary vasoconstriction may elicit pulmonary oedema. The purpose of this study is to...
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doaj-53f20a47436c4f63b680bada6e9882a12020-11-25T03:00:36ZengMDPI AGInternational Journal of Environmental Research and Public Health1661-78271660-46012020-05-01173501350110.3390/ijerph17103501Lung Diffusion in a 14-Day Swimming Altitude Training Camp at 1850 MetersIker García0Franchek Drobnic1Teresa Galera2Victoria Pons3Ginés Viscor4Secció de Fisiologia, Departament de Biologia Cel·lular, Fisiologia i Immunologia, Facultat de Biologia, Universitat de Barcelona, Av. Diagonal, 643, E-08028 Barcelona, SpainMedical Services Shenhua Greenland FC, Shanghai 201315, ChinaSecció de Fisiologia, Departament de Biologia Cel·lular, Fisiologia i Immunologia, Facultat de Biologia, Universitat de Barcelona, Av. Diagonal, 643, E-08028 Barcelona, SpainCentre d’Alt Rendiment (CAR) de Sant Cugat, Av. Alcalde Barnils s/n, E-08173 Sant Cugat del Vallés, 08174 Barcelona, SpainSecció de Fisiologia, Departament de Biologia Cel·lular, Fisiologia i Immunologia, Facultat de Biologia, Universitat de Barcelona, Av. Diagonal, 643, E-08028 Barcelona, SpainSwimming exercise at sea level causes a transient decrease in lung diffusing capacity for carbon monoxide (DL<sub>CO</sub>). The exposure to hypobaric hypoxia can affect lung gas exchange, and hypoxic pulmonary vasoconstriction may elicit pulmonary oedema. The purpose of this study is to evaluate whether there are changes in DL<sub>CO</sub> during a 14-day altitude training camp (1850 m) in elite swimmers and the acute effects of a combined training session of swimming in moderate hypoxia and 44-min cycling in acute normobaric severe hypoxia (3000 m). Participants were eight international level swimmers (5 females and 3 males; 17–24 years old; 173.5 ± 5.5 cm; 64.4 ± 5.3 kg) with a training volume of 80 km per week. The single-breath method was used to measure the changes in DL<sub>CO</sub> and functional gas exchange parameters. No changes in DL<sub>CO</sub> after a 14-day altitude training camp at 1850 m were detected but a decrease in alveolar volume (VA; 7.13 ± 1.61 vs. 6.50 ± 1.59 L; <i>p</i> = 0.005; d = 0.396) and an increase in the transfer coefficient of the lung for carbon monoxide (K<sub>CO</sub>; 6.23 ± 1.03 vs. 6.83 ± 1.31 mL·min<sup>−1</sup>·mmHg<sup>−1</sup>·L<sup>−1</sup>; <i>p</i> = 0.038; d = 0.509) after the altitude camp were observed. During the acute hypoxia combined session, there were no changes in DL<sub>CO</sub> after swimming training at 1850 m, but there was a decrease in DL<sub>CO</sub> after cycling at a simulated altitude of 3000 m (40.6 ± 10.8 vs. 36.8 ± 11.2 mL·min<sup>−1</sup>·mmHg<sup>−1</sup>; <i>p</i> = 0.044; d = 0.341). A training camp at moderate altitude did not alter pulmonary diffusing capacity in elite swimmers, although a cycling session at a higher simulated altitude caused a certain degree of impairment of the alveolar–capillary gas exchange.https://www.mdpi.com/1660-4601/17/10/3501pulmonary diffusing capacityDL<sub>CO</sub>altitude trainingswimmingSIPO |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Iker García Franchek Drobnic Teresa Galera Victoria Pons Ginés Viscor |
spellingShingle |
Iker García Franchek Drobnic Teresa Galera Victoria Pons Ginés Viscor Lung Diffusion in a 14-Day Swimming Altitude Training Camp at 1850 Meters International Journal of Environmental Research and Public Health pulmonary diffusing capacity DL<sub>CO</sub> altitude training swimming SIPO |
author_facet |
Iker García Franchek Drobnic Teresa Galera Victoria Pons Ginés Viscor |
author_sort |
Iker García |
title |
Lung Diffusion in a 14-Day Swimming Altitude Training Camp at 1850 Meters |
title_short |
Lung Diffusion in a 14-Day Swimming Altitude Training Camp at 1850 Meters |
title_full |
Lung Diffusion in a 14-Day Swimming Altitude Training Camp at 1850 Meters |
title_fullStr |
Lung Diffusion in a 14-Day Swimming Altitude Training Camp at 1850 Meters |
title_full_unstemmed |
Lung Diffusion in a 14-Day Swimming Altitude Training Camp at 1850 Meters |
title_sort |
lung diffusion in a 14-day swimming altitude training camp at 1850 meters |
publisher |
MDPI AG |
series |
International Journal of Environmental Research and Public Health |
issn |
1661-7827 1660-4601 |
publishDate |
2020-05-01 |
description |
Swimming exercise at sea level causes a transient decrease in lung diffusing capacity for carbon monoxide (DL<sub>CO</sub>). The exposure to hypobaric hypoxia can affect lung gas exchange, and hypoxic pulmonary vasoconstriction may elicit pulmonary oedema. The purpose of this study is to evaluate whether there are changes in DL<sub>CO</sub> during a 14-day altitude training camp (1850 m) in elite swimmers and the acute effects of a combined training session of swimming in moderate hypoxia and 44-min cycling in acute normobaric severe hypoxia (3000 m). Participants were eight international level swimmers (5 females and 3 males; 17–24 years old; 173.5 ± 5.5 cm; 64.4 ± 5.3 kg) with a training volume of 80 km per week. The single-breath method was used to measure the changes in DL<sub>CO</sub> and functional gas exchange parameters. No changes in DL<sub>CO</sub> after a 14-day altitude training camp at 1850 m were detected but a decrease in alveolar volume (VA; 7.13 ± 1.61 vs. 6.50 ± 1.59 L; <i>p</i> = 0.005; d = 0.396) and an increase in the transfer coefficient of the lung for carbon monoxide (K<sub>CO</sub>; 6.23 ± 1.03 vs. 6.83 ± 1.31 mL·min<sup>−1</sup>·mmHg<sup>−1</sup>·L<sup>−1</sup>; <i>p</i> = 0.038; d = 0.509) after the altitude camp were observed. During the acute hypoxia combined session, there were no changes in DL<sub>CO</sub> after swimming training at 1850 m, but there was a decrease in DL<sub>CO</sub> after cycling at a simulated altitude of 3000 m (40.6 ± 10.8 vs. 36.8 ± 11.2 mL·min<sup>−1</sup>·mmHg<sup>−1</sup>; <i>p</i> = 0.044; d = 0.341). A training camp at moderate altitude did not alter pulmonary diffusing capacity in elite swimmers, although a cycling session at a higher simulated altitude caused a certain degree of impairment of the alveolar–capillary gas exchange. |
topic |
pulmonary diffusing capacity DL<sub>CO</sub> altitude training swimming SIPO |
url |
https://www.mdpi.com/1660-4601/17/10/3501 |
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