Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Controlled breathing protocols probe human autonomic cardiovascular rhythms

W H Cooke1, J F Cox, A M Diedrich

  • 1Department of Medicine, Medical College of Virginia of Virginia Commonwealth University, Richmond, USA.

The American Journal of Physiology
|March 5, 1998
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

[Pain management in rare diseases].

Schmerz (Berlin, Germany)·2020
Same author

[Pain management in sickle cell disease].

Schmerz (Berlin, Germany)·2020
Same author

[The development of alcoholism in Germany after the war].

International journal on alcohol and alcoholism·2014
Same author

[Cardiovascular and hemostaseological view of retinal vascular occlusions].

Der Ophthalmologe : Zeitschrift der Deutschen Ophthalmologischen Gesellschaft·2014
Same author

Dural ectasia in Loeys-Dietz syndrome: comprehensive study of 30 patients with a TGFBR1 or TGFBR2 mutation.

Clinical genetics·2013
Same author

The effect of respiratory diseases on serum lactate dehydrogenase and its isoenzyme patterns in calves.

Polish journal of veterinary sciences·2013
Same journal

Blood coagulation in fish.

The American journal of physiology·2011
Same journal

Renal tubular reabsorption, metabolic utilization and isomeric fractionation of lactic acid in the dog.

The American journal of physiology·2010
Same journal

The inactivation of placental toxin by human serum.

The American journal of physiology·2010
Same journal

Adrenal function following ovariectomy in the rat.

The American journal of physiology·2010
Same journal

Capillary permeability; perfusion of frog and guinea pig hind limbs.

The American journal of physiology·2010
Same journal

Evaluation of protective measures against sunburn.

The American journal of physiology·2010
See all related articles

Breathing protocols impact cardiovascular dynamics. Stepwise breathing without strict volume control best assesses respiratory-mediated autonomic oscillations, while controlled volumes attenuate R-R interval oscillations.

Area of Science:

  • Cardiovascular Physiology
  • Autonomic Nervous System Regulation
  • Respiratory Control

Background:

  • Breathing patterns significantly influence cardiovascular dynamics.
  • Understanding the interplay between respiratory control and autonomic rhythms is crucial for physiological assessment.
  • Various breathing protocols exist, but their differential effects on cardiovascular measures require clarification.

Purpose of the Study:

  • To investigate the impact of breathing protocols with varying degrees of control on cardiovascular dynamics.
  • To compare the effects of stepwise, random, and fixed-frequency breathing on autonomic rhythms.
  • To identify the optimal breathing protocol for assessing short-term respiratory-mediated autonomic oscillations.

Main Methods:

  • 10 volunteers underwent 5 breathing protocols: uncontrolled, stepwise frequency, stepwise frequency with prescribed tidal volumes, random frequency, and fixed frequency.
Keywords:
NASA Discipline CardiopulmonaryNon-NASA Center

Related Experiment Videos

  • Measurements included inspiratory volume, end-tidal CO2, R-R interval, and arterial pressure spectral power.
  • Analysis focused on spectral power, coherence, and transfer functions between respiratory and cardiovascular variables.

    • Main Results:

    • Stepwise breathing showed increased R-R interval and arterial pressure spectral power as frequency decreased.
    • Strict tidal volume control during 0.1 Hz breathing reduced R-R interval spectral power.
    • Stepwise and random breathing protocols demonstrated comparable coherence and transfer functions.
    • Random- and fixed-frequency breathing led to modest reductions in end-tidal CO2.

    Conclusions:

    • Stringent tidal volume control attenuates low-frequency R-R interval oscillations.
    • Fixed- and random-rate breathing may reduce CO2 chemoreceptor stimulation.
    • A stepwise breathing protocol without stringent inspired volume control appears most efficient for assessing short-term respiratory-mediated autonomic oscillations.