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

Head position modifies upper airway resistance in men.

G Liistro1, D Stănescu, G Dooms

  • 1Cardiopulmonary Laboratory, Cliniques Universitaires St. Luc, Brussels, Belgium.

Journal of Applied Physiology (Bethesda, Md. : 1985)
|March 1, 1988
PubMed
Summary

Head flexion significantly increases airway resistance in healthy individuals. This is due to changes in the hypopharyngeal airway

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

Development of a Dutch Version of the Sydney Swallow Questionnaire: Assessing Oropharyngeal Dysphagia Severity in Dutch-Speaking Populations.

Indian journal of otolaryngology and head and neck surgery : official publication of the Association of Otolaryngologists of India·2024
Same author

Carboxyhemoglobin half-life toxicokinetic profiles during and after normobaric oxygen therapy: On a swine model.

Toxicology reports·2024
Same author

Dyspnea or Cheyne-Stokes respiration associated with Ticagrelor?

Sleep medicine·2018
Same author

Effect of Pressure Support Ventilation on Carboxyhemoglobin Toxicokinetic after Acute Carbon Monoxide Intoxication: a Swine Model.

Journal of medical toxicology : official journal of the American College of Medical Toxicology·2018
Same author

Subtraction of subcutaneous fat to improve the prediction of visceral adiposity: exploring a new anthropometric track in overweight and obese youth.

Pediatric diabetes·2016
Same author

[Mycobacterium avium tumoral infection mimicking a lung adenocarcinoma: A potential diagnostic pitfall].

Revue de pneumologie clinique·2015

Area of Science:

  • Respiratory Physiology
  • Anatomy

Background:

  • Airway resistance is a critical factor in respiratory function.
  • Understanding factors influencing airway resistance is essential for respiratory health.

Purpose of the Study:

  • To investigate the impact of head position on airway resistance.
  • To determine the relationship between upper airway anatomy and resistance changes.

Main Methods:

  • Measurements of airway resistance (Raw), respiratory system resistance (Rrs), and supralaryngeal resistance (Rsl) in neutral, extended, and flexed head positions.
  • Sagittal magnetic resonance imaging (MRI) of upper airways in neutral and flexed positions.

Main Results:

  • Significant increases in Raw, Rrs, and Rsl were observed with head flexion compared to the neutral position.

Related Experiment Videos

  • Head flexion led to decreased specific airway and respiratory conductances.
  • MRI showed reduced hypopharyngeal airway diameter and surface area during head flexion, correlating with increased resistance.

    • Conclusions:

    • Head flexion significantly increases airway resistance.
    • Changes in hypopharyngeal airway caliber are the primary cause of increased resistance during head flexion.
    • These findings have implications for respiratory mechanics and patient positioning.