Vocal Performance of Group Fitness Instructors Before and After Instruction: Changes in Acoustic Measures and Self-Ratings

Journal of Voice : Official Journal of the Voice Foundation
Katherine Dallaston, Anna F Rumbach

Abstract

(1) To quantify acute changes in acoustic parameters of the voices of group fitness instructors (GFIs) before and after exercise instruction. (2) To determine whether these changes are discernible perceptually by the instructor. This is a pilot prospective cohort study. Participants were six female GFIs, based in Brisbane, Australia. Participants performed a series of vocal tasks before and after instruction of a 60-minute exercise class. Data were obtained pertaining to fundamental frequency (pitch), intensity (volume), jitter, shimmer, harmonic-to-noise ratio (HNR), maximum duration of sustained phonation (MDSP), and pitch range. Additionally, self-ratings of voice quality were obtained before and after instruction. Data were analyzed using the Wilcoxon signed rank test. Significant increases (P ≤ 0.05) were found in fundamental frequency and intensity after instruction. No significant changes in jitter, shimmer, HNR, or MDSP were found before and after instruction. For the group, no significant change in self-ratings of voice quality occurred before and after instruction. Statistically significant changes in pitch and volume were found on acoustic analysis. However, these subtle changes remained within the limits of what is ...Continue Reading

References

May 1, 1992·The Journal of the Acoustical Society of America·I R Titze
Nov 1, 1981·Respiration Physiology·J H Doust, J M Patrick
Jun 1, 1995·Journal of Voice : Official Journal of the Voice Foundation·J C StempleL Lee
Sep 1, 1993·Journal of Communication Disorders·S E Heidel, J K Torgerson
Jul 2, 1998·Journal of Voice : Official Journal of the Voice Foundation·J LongV Wolfe
Jan 13, 1999·Clinical Otolaryngology and Allied Sciences·R Buekers
Aug 12, 1999·Journal of Voice : Official Journal of the Voice Foundation·E A MannC Patow
Jan 6, 2000·Journal of Voice : Official Journal of the Voice Foundation·L Rantala, E Vilkman
Jul 13, 2000·The Laryngoscope·A Naito, S Niimi
Dec 29, 2000·Journal of Voice : Official Journal of the Voice Foundation·R I ZraickJ C Montague
May 11, 2002·Journal of Voice : Official Journal of the Voice Foundation·Virginia WolfeMichelle Scharff Olson
Apr 23, 2003·Journal of Voice : Official Journal of the Voice Foundation·Nathan V Welham, Margaret A Maclagan
May 24, 2005·Journal of Voice : Official Journal of the Voice Foundation·Richard I ZraickLaura Smith-Olinde
Oct 24, 2006·Journal of Voice : Official Journal of the Voice Foundation·Laura LehtoPaavo Alku
Nov 13, 2008·Behavior Research Methods·Adam P Vogel, Paul Maruff
Dec 30, 2008·Journal of Voice : Official Journal of the Voice Foundation·Renée SpeyerJan W Brunings
Jan 1, 2008·International Journal of Speech-language Pathology·Nancy Pearl Solomon

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Citations

Nov 1, 2017·American Journal of Speech-language Pathology·Jarrad H Van StanRobert E Hillman
May 14, 2020·Somatosensory & Motor Research·Elif Tugba SaracAkin Akakin
Sep 24, 2019·Journal of Voice : Official Journal of the Voice Foundation·Chao XueJack J Jiang
Feb 15, 2020·Journal of Voice : Official Journal of the Voice Foundation·Anju Susan PhilipRavishankar N
Jun 12, 2021·Journal of Voice : Official Journal of the Voice Foundation·Victoria S McKennaRenee L Gustin

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