Elementary School Teachers' Vocal Dose: Muscle Bioenergetics and Training Implications Purpose Translating exercise-science methodology for determination of muscle bioenergetics, we hypothesized that the temporal voice-use patterns for classroom and music teachers would indicate a reliance on the immediate energy system for laryngeal skeletal-muscle metabolism. It was hypothesized that the music-teacher group would produce longer voiced segments than the classroom teachers. ... Research Article
Research Article  |   July 12, 2017
Elementary School Teachers' Vocal Dose: Muscle Bioenergetics and Training Implications
 
Author Affiliations & Notes
  • Audrey G. Smith
    Auburn University, Alabama
  • Mary J. Sandage
    Auburn University, Alabama
  • David D. Pascoe
    Auburn University, Alabama
  • Laura W. Plexico
    Auburn University, Alabama
  • Italo R. Lima
    Auburn University, Alabama
  • Guanqun Cao
    Auburn University, Alabama
  • Disclosure: The authors have declared that no competing interests existed at the time of publication.
    Disclosure: The authors have declared that no competing interests existed at the time of publication. ×
  • Correspondence to Mary J. Sandage: sandamj@auburn.edu
  • Editor: Julie Liss
    Editor: Julie Liss×
  • Associate Editor: Nelson Roy
    Associate Editor: Nelson Roy×
Article Information
School-Based Settings / Speech, Voice & Prosody / Speech / Research Articles
Research Article   |   July 12, 2017
Elementary School Teachers' Vocal Dose: Muscle Bioenergetics and Training Implications
Journal of Speech, Language, and Hearing Research, July 2017, Vol. 60, 1831-1842. doi:10.1044/2016_JSLHR-S-16-0193
History: Received May 11, 2016 , Revised October 26, 2016 , Accepted November 29, 2016
 
Journal of Speech, Language, and Hearing Research, July 2017, Vol. 60, 1831-1842. doi:10.1044/2016_JSLHR-S-16-0193
History: Received May 11, 2016; Revised October 26, 2016; Accepted November 29, 2016

Purpose Translating exercise-science methodology for determination of muscle bioenergetics, we hypothesized that the temporal voice-use patterns for classroom and music teachers would indicate a reliance on the immediate energy system for laryngeal skeletal-muscle metabolism. It was hypothesized that the music-teacher group would produce longer voiced segments than the classroom teachers.

Method Using a between- and within-group multivariate analysis-of-variance design (5 classroom teachers; 7 music teachers), we analyzed fundamental-frequency data—collected via an ambulatory phonation monitor—for length (seconds) of voiced and nonvoiced intervals. Data were collected for 7.5 hr during the workday, over the course of several workdays for each teacher.

Results Descriptive analyses of voiced and nonvoiced intervals indicated that over 99% of voiced segments for both groups were no longer than 3.15 s, supporting the hypothesis of reliance on the immediate energy system for muscle bioenergetics. Significant differences were identified between and within the classroom- and music-teacher groups, with the music-teacher group producing longer voiced segments overall.

Conclusions Knowledge of probable intrinsic laryngeal skeletal-muscle bioenergetics requirements could inform new interdisciplinary considerations for voice habilitation and rehabilitation.

Acknowledgment
The content of this article is novel work and solely the responsibility of the authors. The authors would like to acknowledge Sharron Morrow for sharing her data for this unique project.
Order a Subscription
Pay Per View
Entire Journal of Speech, Language, and Hearing Research content & archive
24-hour access
This Article
24-hour access