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

The larynx during exercise.

A Naito1, S Niimi

  • 1Department of Otolaryngology of the University of Tokyo, Japan. akira-tky@umin.u-tokyo.ac.jp

The Laryngoscope
|July 13, 2000
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

17β-Estradiol in the systemic circulation derives mainly from the parietal cells in cholestatic female rats.

Journal of endocrinological investigation·2015
Same author

Manipulations of extracellular Loop 2 in α1 GlyR ultra-sensitive ethanol receptors (USERs) enhance receptor sensitivity to isoflurane, ethanol, and lidocaine, but not propofol.

Neuroscience·2015
Same author

Minimum stable structure of the receptor for advanced glycation end product possesses multi ligand binding ability.

Biochemical and biophysical research communications·2009
Same author

[Emphysematous giant bulla that was difficult to differetiated from pneumothorax].

Kyobu geka. The Japanese journal of thoracic surgery·2008
Same author

Dihydrotestosterone inhibits murine hair growth via the androgen receptor.

The British journal of dermatology·2008
Same author

Increased mitochondrial DNA induces acquired docetaxel resistance in head and neck cancer cells.

Oncogene·2007

Researchers developed a system to observe the larynx during body movements, finding a link between upper limb exertion and laryngeal closure, which can cause a 20% power loss.

Area of Science:

  • Biomechanics
  • Physiology
  • Otolaryngology

Background:

  • Laryngeal closure, or 'air trapping,' is a physiological response.
  • Understanding its relationship with body movements is crucial for various applications.

Purpose of the Study:

  • To create a system for observing the larynx during physical activity.
  • To investigate the connection between upper limb movements and laryngeal closure.

Main Methods:

  • Developed a specialized endoscope for laryngeal observation during movement.
  • Monitored laryngeal state in subjects during various exercises.
  • Recorded upper limb output with and without laryngeal closure.

Main Results:

  • The larynx remained observable during strenuous exercises like gymnastics.

Related Experiment Videos

  • Laryngeal closure frequently occurred at the onset of maximal upper limb effort.
  • An average 20% power loss was observed when comparing upper limb output with and without laryngeal closure.

    • Conclusions:

    • The developed system can aid in diagnosing laryngeal disorders during exercise.
    • Findings may enhance voice therapy techniques like the pushing exercise.
    • The system allows for better evaluation of incomplete laryngeal closure related to limb movements.
    • The technique is applicable to studying the larynx during vocalizations involving body movement.