Evidence map›Paper›PMID 34009681›Full record

ArticleThe Laryngoscope2021

Mitigating the Effects of Acute Vocal Exertion in Individuals With Vocal Fatigue.

Robert Brinton Fujiki, Jessica E Huber, M Preeti Sivasankar

Open access · greenAbstract read
In one paragraph

Article in The Laryngoscope, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
2.0field-weighted citation impact, top 13% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed, 21 citations in OpenAlex.

  1. Potential Biophysiological Mechanisms Underlying Vocal Demands and Vocal Fatigue.Journal of voice : official journal of the Voice Foundation · 2025
    Review
  2. Pediatric Voice Therapy: How Many Sessions to Discharge?American journal of speech-language pathology · 2022
    Observational
  3. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Robert Brinton FujikiDepartment of Speech, Language, and Hearing Sciences, Purdue University, West Lafayette, Indiana, U.S.A.ORCID 0000-0002-9273-046X
Jessica E HuberDepartment of Speech, Language, and Hearing Sciences, Purdue University, West Lafayette, Indiana, U.S.A.
M Preeti SivasankarDepartment of Speech, Language, and Hearing Sciences, Purdue University, West Lafayette, Indiana, U.S.A.ORCID 0000-0003-0987-5076
Purdue University West Lafayette · US

Funding

Diversity SupplementT32DC000030 · NIDCD · PURDUE UNIVERSITY WEST LAFAYETTE · PI Arielle Borovsky, Preeti M. Sivasankar · 1991 to 2026
$5.4M
Vocal restoration programs after acute vocal exertionF31DC017907 · NIDCD · PURDUE UNIVERSITY · PI FUJIKI, ROBERT BRINTON · 2019 to 2019
$29k
NIDCD NIH HHS F31 DC017907NIDCD NIH HHS F31 fellowship (1F31DC017907-01A1)NIDCD NIH HHS T32 DC000030NIH HHS T32-training grant (2T32DC000030-26)
6 · The paper itself

Abstract

objectives/hypothesisTo investigate the effects of acute vocal exertion on individuals with vocal fatigue and to determine whether semi-occluded vocal tract exercises (SOVTEs) are more effective than vocal rest in mitigating acute effects. STUDY

designProspective, repeated-measures design.

methodsOn consecutive days, 10 individuals (6 males, 4 females) with scores indicating vocal fatigue on the Vocal Fatigue Index completed two 10-minute vocal exertion tasks. Vocal rest or SOVTEs were interspersed in counterbalanced order between exertion tasks. Respiratory kinematic, acoustic, aerodynamic, and self-perceptual measures were collected at baseline, following vocal exertion, following SOVTE/vocal rest, and following the second exertion task.

resultsAcute vocal exertion worsened phonation threshold pressure (P < .001) and vocal effort (P < .001) and reduced maximum fundamental frequency (P < .001). Speech was terminated at lower lung volumes following vocal exertion (decreased lung volume termination [LVT], P < .001). Exertion-induced changes in vocal effort and LVT were significantly reversed by both vocal rest and SOVTE. Detrimental changes in voice measures reoccurred following the second vocal exertion task. SOVTE and vocal rest protected against changes in respiratory kinematics when vocal exertion was resumed.

conclusionsVocal exertion impacted laryngeal, respiratory, and self-perceptual measures in individuals with vocal fatigue. Both SOVTE and vocal rest partially mitigated changes in voice measures and prompted more efficient respiratory strategies that were maintained when vocal exertion resumed. These data increase our understanding of how individuals with vocal fatigue respond to vocal exertion tasks and offer preliminary guidance for optimal clinical recommendations. LEVEL OF EVIDENCE: 3 Laryngoscope, 131:2732-2739, 2021.

Indexed as

Voice TrainingAdolescentAdultFemaleHumansMalePhonationProspective StudiesTreatment OutcomeVocal CordsVoice DisordersYoung Adultrespiratory kinematicsSOVTEVocal exertionvocal fatiguevocal rest

Identifiers

PMID34009681
PMCPMC9815935
OpenAlexW3162080887

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.