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Laryngeal changes during exercise and exercise-induced asthma.

C G Hurbis1, J A Schild

  • 1Department of Otolaryngology-Head and Neck Surgery, University of Illinois, Chicago 60612.

The Annals of Otology, Rhinology, and Laryngology
|January 1, 1991
PubMed
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This study investigated the larynx's role in exercise-induced asthma. Findings show the larynx significantly contributes to exercise-induced asthma symptoms.

Area of Science:

  • Respiratory Medicine
  • Exercise Physiology
  • Laryngology

Background:

  • Exercise-induced asthma (EIA) involves bronchospasm in distal airways during exercise.
  • The larynx's specific role in EIA symptom exacerbation or alleviation remains unevaluated.

Purpose of the Study:

  • To evaluate the laryngeal response during exercise in individuals with and without EIA.
  • To determine if laryngeal changes contribute to EIA pathophysiology.

Main Methods:

  • Thirty subjects (15 normal, 15 with EIA) underwent exercise challenges.
  • Laryngeal response was assessed by measuring glottic aperture area using flexible laryngoscopy.
  • Subjects exercised for 10 minutes breathing cold, dry air (10°C).

Main Results:

Related Experiment Videos

  • Physiological laryngeal responses to exercise were quantified in normal subjects.
  • A substantial laryngeal contribution to EIA was demonstrated.
  • Relative glottic areas differed between groups post-exercise.

Conclusions:

  • The larynx plays a significant role in the pathophysiology of exercise-induced asthma.
  • Understanding laryngeal responses can inform EIA management strategies.
  • Further research into laryngeal-diaphragmatic interactions during exercise is warranted.