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Related Concept Videos

Respiratory Volumes and Capacities I01:26

Respiratory Volumes and Capacities I

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Assessing the respiratory rate and rhythm for a complete minute is crucial for evaluating the breathing pattern. Even a minor increase in the patient's average respiratory rate, by as little as three to five breaths per minute, is an early and vital indicator of respiratory distress. Patients with a respiratory rate exceeding twenty-four breaths per minute require close monitoring to determine the physiological alterations. This careful observation is essential for prompt recognition and...
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Assessment of Ventilation II: Respiratory Depth and Rhythm01:29

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Respiratory Depth
Respiratory depth measures the volume of air inhaled or exhaled during a breath. It can vary from shallow to deep and typically remains consistent when a person is at rest or asleep. Occasionally, individuals will automatically inhale deeply, known as sighing, which inflates the lungs with more air than normal breathing.
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Respiratory Volumes and Capacities01:22

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The respiratory system is responsible for the intake of oxygen and the expulsion of carbon dioxide from the body. Respiratory volumes describe the volume of air in the lungs at different phases of the respiratory cycle. Tidal volume is the air breathed in and out during normal, quiet breathing. Inspiratory reserve volume is the air that can be forcefully inspired beyond the tidal volume. In contrast, expiratory reserve volume refers to the air that can be expelled from the lungs after a normal...
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Pulmonary Function Tests (PFTs)
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A Ventilation assessment is critical for monitoring a patient's health status. Respiration, one of the most accessible vital signs, provides insights into the function of numerous body systems and can indicate serious health issues, such as brainstem injuries from head trauma.
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Physical Assessment of the Respiratory Tract IV: Auscultation01:28

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Auscultation is a crucial component of the physical assessment of the respiratory tract. It offers valuable insights into airflow through the bronchial tree and potential lung obstructions. This process involves careful listening to breath, voice, and adventitious sounds, which can reveal a wealth of information about a patient's respiratory health.
Breath Sounds
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Vocal Fatigue Index (VFI): Development and Validation.

Chayadevie Nanjundeswaran1, Barbara H Jacobson2, Jackie Gartner-Schmidt3

  • 1Department of Audiology and Speech-Language Pathology, East Tennessee State University, Johnson City, Tennessee.

Journal of Voice : Official Journal of the Voice Foundation
|March 22, 2015
PubMed
Summary

The Vocal Fatigue Index (VFI) is a reliable and valid tool developed to identify individuals experiencing vocal fatigue (VF) and understand their symptoms. This questionnaire accurately distinguishes between those with and without vocal fatigue.

Keywords:
QuestionnaireReliabilitySensitivitySpecificityValidityVocal fatigue

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Area of Science:

  • Speech and Hearing Sciences
  • Psychometrics
  • Otolaryngology

Background:

  • Vocal fatigue (VF) is a prevalent issue affecting individuals with voice complaints.
  • A standardized tool is needed to accurately identify and characterize vocal fatigue.

Purpose of the Study:

  • To develop and validate the Vocal Fatigue Index (VFI), a self-report questionnaire.
  • The VFI aims to identify individuals with vocal fatigue and describe their symptoms.

Main Methods:

  • Descriptive research utilizing scale development methodology.
  • A 19-item Vocal Fatigue Index (VFI) was created and administered to patients with voice complaints and healthy controls.
  • Psychometric properties, including reliability, sensitivity, and specificity, were assessed.

Main Results:

  • The final 19-item VFI demonstrated strong test-retest reliability.
  • Logistic regression analysis confirmed good sensitivity and specificity in distinguishing individuals with and without vocal fatigue.
  • Factor analysis identified three key dimensions of vocal fatigue: voice tiredness/avoidance, physical discomfort, and symptom improvement with rest.

Conclusions:

  • The Vocal Fatigue Index (VFI) is a standardized and psychometrically sound instrument.
  • The VFI reliably and validly identifies individuals with probable vocal fatigue.
  • The VFI effectively characterizes vocal fatigue complaints through its identified factors.