Aerodynamic Profiles of Women With Muscle Tension Dysphonia/Aphonia Purpose In this study, the authors aimed to (a) determine whether phonatory airflows and estimated subglottal pressures (est-Psub) for women with primary muscle tension dysphonia/aphonia (MTD/A) differ from those for healthy speakers; (b) identify different aerodynamic profile patterns within the MTD/A subject group; and (c) determine whether results suggest new ... Research Article
Research Article  |   April 01, 2013
Aerodynamic Profiles of Women With Muscle Tension Dysphonia/Aphonia
 
Author Affiliations & Notes
  • Amanda I. Gillespie
    University of Pittsburgh
  • Jackie Gartner-Schmidt
    University of Pittsburgh
  • Elaine N. Rubinstein
    University of Pittsburgh
  • Katherine Verdolini Abbott
    University of Pittsburgh
  • Correspondence to Amanda I. Gillespie: aig7@pitt.edu
  • Editor: Anne Smith
    Editor: Anne Smith×
  • Associate Editor: Kristine Tanner
    Associate Editor: Kristine Tanner×
Article Information
Speech, Voice & Prosodic Disorders / Voice Disorders / Speech, Voice & Prosody / Speech / Research Articles
Research Article   |   April 01, 2013
Aerodynamic Profiles of Women With Muscle Tension Dysphonia/Aphonia
Journal of Speech, Language, and Hearing Research, April 2013, Vol. 56, 481-488. doi:10.1044/1092-4388(2012/11-0217)
History: Received August 22, 2011 , Revised January 3, 2012 , Accepted August 15, 2012
 
Journal of Speech, Language, and Hearing Research, April 2013, Vol. 56, 481-488. doi:10.1044/1092-4388(2012/11-0217)
History: Received August 22, 2011; Revised January 3, 2012; Accepted August 15, 2012
Web of Science® Times Cited: 10

Purpose In this study, the authors aimed to (a) determine whether phonatory airflows and estimated subglottal pressures (est-Psub) for women with primary muscle tension dysphonia/aphonia (MTD/A) differ from those for healthy speakers; (b) identify different aerodynamic profile patterns within the MTD/A subject group; and (c) determine whether results suggest new understanding of pathogenesis in MTD/A.

Method Retrospective review of aerodynamic data collected from 90 women at the time of primary MTD/A diagnosis.

Results Aerodynamic profiles were significantly different for women with MTD/A as compared with healthy speakers. Five distinct profiles were identified: (a) normal flow, normal est-Psub; (b) high flow, high est-Psub; (c) low flow, normal est-Psub; (d) normal flow, high est-Psub; and (e) high flow, normal est-Psub.

Conclusions This study is the first to identify distinct subgroups of aerodynamic profiles in women with MTD/A and to quantitatively identify a clinical phenomenon sometimes described in association with it—“breath holding”—that is shown by low airflow with normal est-Psub. Results were consistent with clinical claims that diverse respiratory and laryngeal functions may underlie phonatory patterns associated with MTD/A. One potential mechanism, based in psychobiological theory, is introduced to explain some of the variability in aerodynamic profiles of women with MTD/A.

Acknowledgments
This research was supported in part by National Institute on Deafness and Other Communication Disorders Grant R01 DC008567, awarded to Katherine Verdolini Abbott (principal investigator) and colleagues.
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