Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

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

Physical interactions within the SIR heterochromatin complex potentiate inter-subunit communication and gene repression.

Cell reports·2026

Same author

Increased Respiratory Drive in Sustained Ventricular Vocal Fold Phonation.

Journal of voice : official journal of the Voice Foundation·2026

Same author

Mechanisms at the Intersection of lncRNA and m6A Biology.

Non-coding RNA·2026

Same author

TGFβ/Smad2/3-Mediated Crosstalk Between Vocal Fold Fibroblasts and Myoblasts In Vitro.

The Laryngoscope·2026

Same author

Characterization of an immunodeficiency-associated EZH2 variant.

bioRxiv : the preprint server for biology·2025

Same author

Ectopic expression to synthetic design: Deriving engineering principles of lncRNA-mediated epigenetic regulation.

Cell systems·2025

Search research articles

Related Experiment Video

Updated: Mar 27, 2026

A Protocol for Comprehensive Assessment of Bulbar Dysfunction in Amyotrophic Lateral Sclerosis ALS

A Protocol for Comprehensive Assessment of Bulbar Dysfunction in Amyotrophic Lateral Sclerosis ALS

Published on: February 21, 2011

Intrasubject Reliability of Maximum Phonation Time.

Aaron M Johnson¹, Alicia Goldfine²

¹University of Illinois at Urbana-Champaign, Champaign, Illinois..

Journal of Voice : Official Journal of the Voice Foundation

|January 19, 2016

Summary

This summary is machine-generated.

Maximum phonation time (MPT) duration showed variability across trials, indicating inconsistent laryngeal efficiency. Repeated MPT measures are not reliable for assessing laryngeal aerodynamics.

Keywords:

Laryngeal aerodynamics MPT Maximum phonation time Reliability Voice evaluation

More Related Videos

Coordinate Mapping of Hyolaryngeal Mechanics in Swallowing

Coordinate Mapping of Hyolaryngeal Mechanics in Swallowing

Published on: May 6, 2014

Author Spotlight: Investigating the Impact of Emotional Prosodies on Voice Recognition and Perception

Author Spotlight: Investigating the Impact of Emotional Prosodies on Voice Recognition and Perception

Published on: August 9, 2024

Related Experiment Videos

Last Updated: Mar 27, 2026

A Protocol for Comprehensive Assessment of Bulbar Dysfunction in Amyotrophic Lateral Sclerosis ALS

A Protocol for Comprehensive Assessment of Bulbar Dysfunction in Amyotrophic Lateral Sclerosis ALS

Published on: February 21, 2011

Coordinate Mapping of Hyolaryngeal Mechanics in Swallowing

Coordinate Mapping of Hyolaryngeal Mechanics in Swallowing

Published on: May 6, 2014

Author Spotlight: Investigating the Impact of Emotional Prosodies on Voice Recognition and Perception

Author Spotlight: Investigating the Impact of Emotional Prosodies on Voice Recognition and Perception

Published on: August 9, 2024

Area of Science:

Speech-Language Pathology
Voice Science
Acoustic Analysis

Background:

Maximum phonation time (MPT) is a common clinical measure.
Its reliability in repeated assessments is crucial for accurate diagnosis.

Purpose of the Study:

To determine the intrasubject reliability of repeated MPT duration measures.
To examine the influence of age, sex, and airflow on MPT reliability.

Main Methods:

20 participants (young/old, male/female) underwent three consecutive MPT trials.
Intraclass correlation and repeated-measures ANOVA analyzed MPT reliability and effects of age/sex.

Main Results:

MPT duration showed strong overall reliability (ICC=0.86) but was not stable across trials (p=0.04).
The second trial yielded the longest MPT duration (p=0.03).
No effects of age or sex were observed on MPT duration or airflow.

Conclusions:

Variability in MPT duration and its relationship with airflow suggest inconsistent laryngeal efficiency.
MPT is not a reliable measure for laryngeal aerodynamics.