Exercise changes volatiles in exhaled breath assessed by an electronic nose

A. Bikov, Zs Lazar, K. Schandl, B. M. Antus, G. Losonczy, I. Horvath

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Exercise-caused metabolic changes can be followed by monitoring exhaled volatiles; however it has not been previously reported if a spectrum of exhaled gases is modified after physical challenge. We have hypothesized that changes in volatile molecules assessed by an electronic nose may be the reason for the alkalization of the exhaled breath condensate (EBC) fluid following physical exercise.Ten healthy young subjects performed a 6-minute running test. Exhaled breath samples pre-exercise and post-exercise (0 min, 15 min, 30 min and 60 min) were collected for volatile pattern ("smellprint") determination and pH measurements (at 5.33 kPa CO2), respectively. Exhaled breath smellprints were analyzed using principal component analysis and were related to EBC pH.Smellprints (p=0.04) and EBC pH (p=0.01) were altered during exercise challenge. Compared to pre-exercise values, smellprints and pH differed at 15 min, 30 min and 60 min following exercise (p

Original languageEnglish
Pages (from-to)321-328
Number of pages8
JournalActa Physiologica Hungarica
Volume98
Issue number3
DOIs
Publication statusPublished - Sep 1 2011

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Electronic Nose
Exercise
Principal Component Analysis
Healthy Volunteers
Gases

Keywords

  • electronic nose
  • exercise
  • exhaled breath condensate
  • exhaled volatiles
  • healthy
  • pH

ASJC Scopus subject areas

  • Physiology (medical)

Cite this

Exercise changes volatiles in exhaled breath assessed by an electronic nose. / Bikov, A.; Lazar, Zs; Schandl, K.; Antus, B. M.; Losonczy, G.; Horvath, I.

In: Acta Physiologica Hungarica, Vol. 98, No. 3, 01.09.2011, p. 321-328.

Research output: Contribution to journalArticle

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