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Perceptual, Aerodynamic and Acoustic Evaluation of Vocal Characteristics in Subjects With Obesity

  • Sanjay Munjal
    Affiliations
    Department of Otolaryngology, Post Graduate Institute of Medical Education and Research, New OPD, Chandigarh, India

    Department of Otolaryngology, Speech and Hearing Unit, New OPD, Post Graduate Institute of Medical Education and Research, Chandigarh, India
    Search for articles by this author
  • Author Footnotes
    1 Current Address: Department of Otolaryngology, Speech and Hearing Unit, New OPD, PGIMER, Chandigarh, India.
    Anuradha Sharma
    Correspondence
    Address correspondence and reprint requests to Anuradha Sharma, Department of Otolaryngology, Speech and Hearing Unit, New OPD, Post Graduate Institute of Medical Education and Research, Sector 12, Chandigarh, India.
    Footnotes
    1 Current Address: Department of Otolaryngology, Speech and Hearing Unit, New OPD, PGIMER, Chandigarh, India.
    Affiliations
    Department of Otolaryngology, Post Graduate Institute of Medical Education and Research, New OPD, Chandigarh, India

    Department of Otolaryngology, Speech and Hearing Unit, New OPD, Post Graduate Institute of Medical Education and Research, Chandigarh, India
    Search for articles by this author
  • Neha Chhabra
    Affiliations
    Department of Otolaryngology, Post Graduate Institute of Medical Education and Research, New OPD, Chandigarh, India

    Department of Otolaryngology, Speech and Hearing Unit, New OPD, Post Graduate Institute of Medical Education and Research, Chandigarh, India

    Post Graduate Institute of Medical Education and Research, New OPD, Chandigarh, India
    Search for articles by this author
  • Naresh Panda
    Affiliations
    Department of Otolaryngology, Post Graduate Institute of Medical Education and Research, New OPD, Chandigarh, India

    Department of Otolaryngology, Speech and Hearing Unit, New OPD, Post Graduate Institute of Medical Education and Research, Chandigarh, India
    Search for articles by this author
  • Author Footnotes
    1 Current Address: Department of Otolaryngology, Speech and Hearing Unit, New OPD, PGIMER, Chandigarh, India.
Published:December 27, 2021DOI:https://doi.org/10.1016/j.jvoice.2021.10.019

      Summary

      Introduction

      Obesity has tripled since 1975 and affects health across many domains. Increasing body mass index increases the risk to the obese subject of many non-communicable diseases. The study evaluated the perceptive, aerodynamic, and acoustic parameters that characterize the voice of the obese population.

      Methodology

      Eighty adult subjects (40 participants in each obese and control group) aged 18-50 years were enrolled. The perceptual voice analysis was performed using the Consensus Auditory Perceptual Evaluation of Voice. The aerodynamic and acoustic voice analyses were performed using the MIR Spiro lab instrument and Doctor's Speech software. A digital stopwatch was also used to measure maximum phonation time.

      Results

      Statistical analysis revealed a significant difference (P-value <0.05 and t value >2) between two groups on acoustic parameters, specifically Normalized noise energy and fundamental frequency tremor (F0 tremor). Normalized noise energy and fundamental frequency tremor were greater in the obese group. Moreover, maximum phonation time and expiratory reserve volume were significantly reduced in the obese group.

      Discussion and Conclusion

      Results of the present study showed poor voice quality and reduced expiratory reserve volume in obese individuals. This could be credited to the adverse effects of accrued adipose on the functioning of the laryngeal and respiratory systems. Increasing body mass index escalates the risk to the obese subjects of many non-communicable diseases.

      Key Words

      Abbreviations:

      BMI (bodymass index), VC (vital capacity), SNR (signal to noise ratio), HNR (harmonics to noise ratio), WC (waist circumference), FVC (forced vital capacity), ERV (expiratory reserve volume)
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