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Vocal Dose for Rhythm-Based Indoor Cycling Instructors: With and Without Amplification.

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Indoor cycling instructors experienced less vocal effort when using amplification. However, amplification unexpectedly increased vocal fold distance dose, highlighting unique occupational voice demands.

Keywords:
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Area of Science:

  • Occupational voice use
  • Speech science
  • Exercise physiology

Background:

  • Indoor cycling instructors face high vocal demands.
  • Understanding vocal load is crucial for preventing voice disorders.

Purpose of the Study:

  • To assess vocal dose and perceived effort in indoor cycling instructors.
  • To compare voice use with and without amplification.

Main Methods:

  • Within-participant repeated measures design with eight instructors.
  • Objective vocal dosimetry and subjective phonatory effort measures.
  • Ecologically valid amplified and unamplified cycling classes.

Main Results:

  • Significantly lower perceived phonatory effort with amplification (P = 0.005).
  • No significant difference in vocal distance dose; amplification unexpectedly increased it.
  • Average voice intensity for females: 99.6 dB (amplified) vs. 96.1 dB (unamplified).

Conclusions:

  • Amplification may reduce perceived vocal effort for instructors.
  • Unexpected increases in vocal distance dose with amplification warrant further investigation.
  • Occupational voice requirements are specific and not generalizable across professions.