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. 2000 Jun;57(6):390–395. doi: 10.1136/oem.57.6.390

Lung function over the first 3 years of a professional diving career

M Skogstad 1, E Thorsen 1, T Haldorsen 1
PMCID: PMC1739971  PMID: 10810128

Abstract

OBJECTIVES—To characterise diving exposure and pulmonary function in professional divers at the start of their formal education and during the first 3 years of their professional career.
METHODS—The study included 87 men at the start of their education as professional divers. At follow up 1 and 3 years after the school 83 and 81 divers respectively were re-examined. Assessment of lung function included dynamic lung volumes and flows and transfer factor for carbon monoxide (TlCO).
RESULTS—69 Divers had preschool SCUBA diving experience and had a median number of 70 dives (range 2-3000) to a median maximal depth of 40 (range 10-73) metres. During the 15 week introductory diving course, they had 44 dives (range 38-50) in the depth range 10-50 metres. The median number of dives over the follow up period was 95 (range 0-722) to a maximal median depth of 38 (range 0-98) metres. At the start of the diving course there were no differences in forced vital capacity (FVC), forced expired volume in 1 second (FEV1), and in TlCO between the 69 pre-exposed divers and the 18 never exposed divers. The FVC was significantly larger than predicted in both groups. At follow up at 3 years there was a significant reduction in mean (SD) FEV1 of 1.8% (6.5), in forced mid-expiratory flow rate (FEF25-75%) of 6.5% (11.7) and in forced expiratory flow at 75% of FVC expired (FEF75%) of 10.4% (16.8). There was no change in FVC. The TlCO was significantly decreased by 4.6% (8.8). No significant effects were found of cumulative diving exposure, including the number of dives, on the relative changes of any of the lung function variables.
CONCLUSIONS—The results indicate that divers initially belong to a selected group with large FVC. Exposure to diving may contribute to changes in pulmonary function, mostly affecting small airways conductance.


Keywords: diving; follow up study; pulmonary function

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Selected References

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  1. Berry G. Longitudinal observations. Their usefulness and limitations with special reference to the forced expiratory volume. Bull Physiopathol Respir (Nancy) 1974 Sep-Oct;10(5):643–656. [PubMed] [Google Scholar]
  2. Burrows B., Lebowitz M. D., Camilli A. E., Knudson R. J. Longitudinal changes in forced expiratory volume in one second in adults. Methodologic considerations and findings in healthy nonsmokers. Am Rev Respir Dis. 1986 Jun;133(6):974–980. doi: 10.1164/arrd.1986.133.6.974. [DOI] [PubMed] [Google Scholar]
  3. Calder I. M., Sweetnham K., Chan K. K., Williams M. M. Relation of alveolar size to forced vital capacity in professional divers. Br J Ind Med. 1987 Jul;44(7):467–469. doi: 10.1136/oem.44.7.467. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Clanton T. L., Dixon G. F., Drake J., Gadek J. E. Effects of swim training on lung volumes and inspiratory muscle conditioning. J Appl Physiol (1985) 1987 Jan;62(1):39–46. doi: 10.1152/jappl.1987.62.1.39. [DOI] [PubMed] [Google Scholar]
  5. Cotes J. E., Davey I. S., Reed J. W., Rooks M. Respiratory effects of a single saturation dive to 300 m. Br J Ind Med. 1987 Feb;44(2):76–82. doi: 10.1136/oem.44.2.76. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Crosbie W. A., Clarke M. B., Cox R. A., McIver N. K., Anderson I. K., Evans H. A., Liddle G. C., Cowan J. L., Brookings C. H., Watson D. G. Physical characteristics and ventilatory function of 404 commercial divers working in the North Sea. Br J Ind Med. 1977 Feb;34(1):19–25. doi: 10.1136/oem.34.1.19. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Crosbie W. A., Reed J. W., Clarke M. C. Functional characteristics of the large lungs found in commercial divers. J Appl Physiol Respir Environ Exerc Physiol. 1979 Apr;46(4):639–645. doi: 10.1152/jappl.1979.46.4.639. [DOI] [PubMed] [Google Scholar]
  8. Davey I. S., Cotes J. E., Reed J. W. Relationship of ventilatory capacity to hyperbaric exposure in divers. J Appl Physiol Respir Environ Exerc Physiol. 1984 Jun;56(6):1655–1658. doi: 10.1152/jappl.1984.56.6.1655. [DOI] [PubMed] [Google Scholar]
  9. Gulsvik A., Bakke P., Humerfelt S., Omenaas E., Tosteson T., Weiss S. T., Speizer F. E. Single breath transfer factor for carbon monoxide in an asymptomatic population of never smokers. Thorax. 1992 Mar;47(3):167–173. doi: 10.1136/thx.47.3.167. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Maio D. A., Farhi L. E. Effect of gas density on mechanics of breathing. J Appl Physiol. 1967 Nov;23(5):687–693. doi: 10.1152/jappl.1967.23.5.687. [DOI] [PubMed] [Google Scholar]
  11. Skogstad M., Thorsen E., Haldorsen T., Melbostad E., Tynes T., Westrum B. Divers' pulmonary function after open-sea bounce dives to 10 and 50 meters. Undersea Hyperb Med. 1996 Jun;23(2):71–75. [PubMed] [Google Scholar]
  12. Suzuki S., Ikeda T., Hashimoto A. Decrease in the single-breath diffusing capacity after saturation dives. Undersea Biomed Res. 1991 Mar;18(2):103–109. [PubMed] [Google Scholar]
  13. Tetzlaff K., Friege L., Reuter M., Haber J., Mutzbauer T., Neubauer B. Expiratory flow limitation in compressed air divers and oxygen divers. Eur Respir J. 1998 Oct;12(4):895–899. doi: 10.1183/09031936.98.12040895. [DOI] [PubMed] [Google Scholar]
  14. Thorsen E., Segadal K., Kambestad B. K. Mechanisms of reduced pulmonary function after a saturation dive. Eur Respir J. 1994 Jan;7(1):4–10. doi: 10.1183/09031936.94.07010004. [DOI] [PubMed] [Google Scholar]
  15. Thorsen E., Segadal K., Kambestad B., Gulsvik A. Divers' lung function: small airways disease? Br J Ind Med. 1990 Aug;47(8):519–523. doi: 10.1136/oem.47.8.519. [DOI] [PMC free article] [PubMed] [Google Scholar]
  16. Thorsen E., Segadal K., Myrseth E., Påsche A., Gulsvik A. Pulmonary mechanical function and diffusion capacity after deep saturation dives. Br J Ind Med. 1990 Apr;47(4):242–247. doi: 10.1136/oem.47.4.242. [DOI] [PMC free article] [PubMed] [Google Scholar]
  17. Thorsen E., Skogstad M., Reed J. W. Subacute effects of inspiratory resistive loading and head-out water immersion on pulmonary function. Undersea Hyperb Med. 1999 Fall;26(3):137–141. [PubMed] [Google Scholar]
  18. Watt S. J. Effect of commercial diving on ventilatory function. Br J Ind Med. 1985 Jan;42(1):59–62. doi: 10.1136/oem.42.1.59. [DOI] [PMC free article] [PubMed] [Google Scholar]

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