Characterizing the Impact of Presbyphonia on Social Interaction

During the study visit, all subjects (including the control group) will be given ten questionnaires asking them to rate their loneliness and quality of life in relation to the changes in their voice. All participants will undergo audiometry to assess hearing (with hearing aids if used at home). If they do not pass the hearing test, they will be screened out of the study.

Participants will then provide a required voice sample using sustained vowels for 3-5 seconds 5 times each, repeating six standard sentences, and 20 seconds of natural conversational speech. Using this voice recording, the following assessments and measurements will be obtained: CAPE-V rating (Consensus auditory perceptual evaluation of voice), Cepstral peak prominence (measurement of dysphonia), fundamental frequency, signal-to-noise ratio, and voice type components (captures breathiness).

Subjects will then be asked to produce a train of /pi pi pi/ at a comfortable pitch and loudness into a mask with an intra-oral mouthpiece to record both pressure and airflow. Five trials will be performed. The following measurements will be obtained: mean flow rate, subglottal pressure, and vocal efficiency.

Subjects will then undergo an awake videostroboscopy using a small flexible camera passed through the nose to view the vocal folds. During this procedure, the nose is anesthetized and the subject is asked to produce sustained vowels for 3-5 seconds. This part of the study takes about 2 minutes to complete. The parameters to be measured for this are: bowing index of the vocal folds and normalized glottal gap.

For the second part of this study, subjects from the presbyphonia population only will be recruited to participate in the phonation resistance training exercises or PhoRTE voice therapy. Prior to therapy, for two weeks, participants will take pictures when their voice disorder may be affecting them or ability to socialize. Brief journal entry will be completed. Photos will be collected, printed, and used as memory recall tool for a pre-treatment semi-structured interview. Interviews will be conducted, approximately 45-60 minutes induration. Both online and in-person options will be available to facilitate participation. An interview guide will include questions designed to assess participants' perception of voice and how voice affects social participation.

Subjects will then complete PhoRTE therapy. Participants perform 5 vocal exercises at individualized target vocal intensity. Goals of therapy are to increase muscular workload on vocal mechanism and target the respiratory and laryngeal muscular deficits that result from aging. Participants practice 6 days per week at home and meet with speech pathologist weekly for 4 weeks.

Following therapy, participants will participate in 60-75-minute semi-structured small group interviews approximately 3 months after voice therapy. Interviews will address experience with voice therapy, and any changes after voice therapy.

Inclusion criteria

• Diagnosis of presbyphonia with findings of presbylaryngis on videostroboscopy, with findings of bilateral true vocal fold atrophy and normal vocal fold motion bilaterally
• Able to complete all questionnaires and voice assessment tasks
• Normal to mild hearing loss in aided condition (with hearing aids)

Exclusion criteria

• Liquid dysphagia or pneumonia in the last year
• Vocal fold lesion/scar/motion impairment
• Neurologic disorder affecting the voice
• Montreal cognitive assessment score <26 or <25 if 12 or fewer years of formal education