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The Resting-State Pulse-Respiration Quotient of Humans: Lognormally Distributed and Centered Around a Value of Four.
Journal article

The Resting-State Pulse-Respiration Quotient of Humans: Lognormally Distributed and Centered Around a Value of Four.

  • Scholkmann F University of Bern, Institute of Complementary and Integrative Medicine, Bern, Switzerland, Felix.Scholkmann@ikim.unibe.ch.
  • Zohdi H
  • Wolf U
  • 2019-10-25
Published in:
  • Physiological research. - 2019
Adult
Blood Pressure
Female
Heart Rate
Humans
Male
Middle Aged
Reference Standards
Respiratory Rate
Rest
Young Adult
English The pulse-respiration quotient (heart rate divided by the respiration rate, PRQ = HR/RR) is a parameter capturing the complex state of cardiorespiratory interactions. We analysed 482 single PRQ values obtained from measurement on 134 healthy adult subjects (49 men, 85 women, age: 24.7 ± 3.4, range: 20-46 years) during rest. We found that the distribution of PRQ values (i) has a global maximum at around a value of 4 (median: 4.19) and (ii) follows a lognormal distribution function. A multimodality of the distribution, associated with several PRQ attractor states was not detected by our group-level based analysis. In summary, our analysis shows that in healthy humans the resting-state PRQ is around 4 and lognormally distributed. This finding supports claims about the special role of the 4 to 1 cardiorespiratory coupling in particular and the PRQ in general for physiological and medical views and applications. To the best of our knowledge, our study is the largest conducted so far in healthy adult humans about reference values of the PRQ during a resting-state at day.
Language
  • English
Open access status
gold
Identifiers
Persistent URL
https://sonar.rero.ch/global/documents/28616
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