Oronasal distribution of ventilation at different ages

David S. James, William Lambert, Christine M. Mermier, Christine A. Stidley, Thomas W. Chick, Jonathan M. Samet

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

The route of breathing, oral or nasal, is a determinant of the doses of inhaled pollutants delivered to target sites in the upper and lower respiratory tracts. We measured partitioning of ventilation, using a divided oronasal mask during a submaximal exercise test, in 37 male and female subjects who ranged in age from 7 to 72 y. The following four patterns of breathing were evident during exercise: (1) nasal only (13.5%), nasal shifting to oronasal (40.5%), oronasal only (40.5%), and oral only (5.4%). Children (i.e., 7-16 y of age) displayed more variability than adults with respect to their patterns of ventilation with exercise. Young adults (i.e., 17-30 y of age) who initially breathed nasally with exercise switched to oral ventilation at a lower percentage of the previously measured maximum ventilation (10.8%) than older subjects (31.8%). The partitioning of ventilation between the nasal and oral routes follows complex patterns that cannot be predicted readily by the age, gender, or nasal airway resistance of the subject.

Original languageEnglish (US)
Pages (from-to)118-123
Number of pages6
JournalArchives of Environmental Health
Volume52
Issue number2
StatePublished - 1997
Externally publishedYes

Fingerprint

Nose
Ventilation
ventilation
Exercise
Respiration
partitioning
Airway Resistance
Masks
Exercise Test
Respiratory System
Young Adult
gender
distribution
pollutant

ASJC Scopus subject areas

  • Environmental Science(all)
  • Environmental Chemistry
  • Public Health, Environmental and Occupational Health

Cite this

James, D. S., Lambert, W., Mermier, C. M., Stidley, C. A., Chick, T. W., & Samet, J. M. (1997). Oronasal distribution of ventilation at different ages. Archives of Environmental Health, 52(2), 118-123.

Oronasal distribution of ventilation at different ages. / James, David S.; Lambert, William; Mermier, Christine M.; Stidley, Christine A.; Chick, Thomas W.; Samet, Jonathan M.

In: Archives of Environmental Health, Vol. 52, No. 2, 1997, p. 118-123.

Research output: Contribution to journalArticle

James, DS, Lambert, W, Mermier, CM, Stidley, CA, Chick, TW & Samet, JM 1997, 'Oronasal distribution of ventilation at different ages', Archives of Environmental Health, vol. 52, no. 2, pp. 118-123.
James DS, Lambert W, Mermier CM, Stidley CA, Chick TW, Samet JM. Oronasal distribution of ventilation at different ages. Archives of Environmental Health. 1997;52(2):118-123.
James, David S. ; Lambert, William ; Mermier, Christine M. ; Stidley, Christine A. ; Chick, Thomas W. ; Samet, Jonathan M. / Oronasal distribution of ventilation at different ages. In: Archives of Environmental Health. 1997 ; Vol. 52, No. 2. pp. 118-123.
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