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Vol 85, No 5 (2017)
ORIGINAL PAPERS
Published online: 2017-10-30
Submitted: 2017-03-21
Accepted: 2017-10-02
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Comparison of lung function values of trained divers in 1.5 ATA hyperbaric chamber after inhaling 100% oxygen and regular air: a crossover study

Muhammad Irfan Ilmi, Faisal Yunus, Muhammad Guritno, Triya Damayanti, Erlang Samoedro, Ahmad Muslim Nazaruddin, Fariz Nurwidya
DOI: 10.5603/ARM.a2017.0038
·
Adv Respir Med 2017;85(5):233-238.

paid access

Vol 85, No 5 (2017)
ORIGINAL PAPERS
Published online: 2017-10-30
Submitted: 2017-03-21
Accepted: 2017-10-02

Abstract

 INTRODUCTION: Diving is an activity performed in more than 1 atmosphere absolute pressure (ATA) either underwater or in a hyperbaric chamber. We aimed to compare lung function values of trained divers in 1.5 ATA hyperbaric chambers after inhaling 100% oxygen and regular air.

METHODS: This experimental study with crossover design involved 18 trained divers in 1.5 ATA hyperbaric room, which is equivalents to a 5-meter depth. The eighteen subjects as the supplementation group, using oro-nasal mask, inhaled 100% oxygen for 30 minutes followed by a one-day washout period. The subjects were then crossed-over into control group inhaling only regular air for 30 minutes. Lung function test was performed before and after supplementation.

RESULTS: In eighteen subjects inhaling regular air, there was a significant difference (p < 0.05) in FEV1/FVC, PEF, FEF25, FEF50, and FEF75. Whereas in eighteen subjects inhaling 100% oxygen, significant difference (p < 0.05) was observed not only in FEV1/FVC, PEF, FEF25, FEF50 and FEF75, but also in FEV1.

CONCLUSIONS: There were significant differences in lung function, especially in dynamic volume of trained divers in 1.5 ATA hyperbaric chamber after inhaling 100% oxygen and regular air for 30 minutes; while there were no significant differences in lung capacity (VC and FVC) in the both groups. Lung function returned to normal following supplementation with a 1-day washout period.

Abstract

 INTRODUCTION: Diving is an activity performed in more than 1 atmosphere absolute pressure (ATA) either underwater or in a hyperbaric chamber. We aimed to compare lung function values of trained divers in 1.5 ATA hyperbaric chambers after inhaling 100% oxygen and regular air.

METHODS: This experimental study with crossover design involved 18 trained divers in 1.5 ATA hyperbaric room, which is equivalents to a 5-meter depth. The eighteen subjects as the supplementation group, using oro-nasal mask, inhaled 100% oxygen for 30 minutes followed by a one-day washout period. The subjects were then crossed-over into control group inhaling only regular air for 30 minutes. Lung function test was performed before and after supplementation.

RESULTS: In eighteen subjects inhaling regular air, there was a significant difference (p < 0.05) in FEV1/FVC, PEF, FEF25, FEF50, and FEF75. Whereas in eighteen subjects inhaling 100% oxygen, significant difference (p < 0.05) was observed not only in FEV1/FVC, PEF, FEF25, FEF50 and FEF75, but also in FEV1.

CONCLUSIONS: There were significant differences in lung function, especially in dynamic volume of trained divers in 1.5 ATA hyperbaric chamber after inhaling 100% oxygen and regular air for 30 minutes; while there were no significant differences in lung capacity (VC and FVC) in the both groups. Lung function returned to normal following supplementation with a 1-day washout period.

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Keywords

spirometry, ventilation, hyperbaric oxygenation, diving

About this article
Title

Comparison of lung function values of trained divers in 1.5 ATA hyperbaric chamber after inhaling 100% oxygen and regular air: a crossover study

Journal

Advances in Respiratory Medicine

Issue

Vol 85, No 5 (2017)

Pages

233-238

Published online

2017-10-30

DOI

10.5603/ARM.a2017.0038

Bibliographic record

Adv Respir Med 2017;85(5):233-238.

Keywords

spirometry
ventilation
hyperbaric oxygenation
diving

Authors

Muhammad Irfan Ilmi
Faisal Yunus
Muhammad Guritno
Triya Damayanti
Erlang Samoedro
Ahmad Muslim Nazaruddin
Fariz Nurwidya

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