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PhoRTE® Grants, Research Evidence, and Professional Presentations

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Research Evidence

Grant Funding

PhoRTE® Research Grants

We are excited to announce the PhoRTE® Research Grant dedicated to advancing the study and application of Phonation Resistance Training Exercises (PhoRTE®). This grant supports innovative research that explores the effectiveness and benefits of PhoRTE® in managing voice, motor speech, and swallowing disorders.

Purpose of the Grant

The purpose of the PhoRTE® Research Grant is to foster cutting-edge research that contributes to the evidence base of PhoRTE® and its impact on individuals with voice, motor speech, and swallowing disorders. We encourage proposals that investigate PhoRTE®, including but not limited to:

  • Efficacy and/or effectiveness of PhoRTE® in different populations (e.g., Phase 3 or 4 randomized clinical trials)
  • Long-term outcomes of the PhoRTE® intervention
  • Comparison of PhoRTE® with other rehabilitation interventions
  • Mechanisms underlying the benefits of PhoRTE®
  • Psychosocial impact of PhoRTE® voice therapy
Eligibility

Students, faculty, and clinicians affiliated with institutions governed by Institutional Review Boards are eligible to apply. We welcome applications from both experienced and early-career investigators who are passionate about advancing PhoRTE®.

Grant Details
  • Grant Amount: Up to $1,000
  • Funding Duration: 1-2 years
  • Application Deadline: November 30
  • Notification of Award: December 15
  • Funding Date: December 31
  • Funding can only be used for covering participant costs or equipment and supplies
Application Process

Interested applicants are required to submit a detailed 2-page single-spaced research proposal with 1/2 inch margins using 11 pt Times New Roman or Arial font, including the following components:

  • Title, investigator names with affiliated institution, and contact information (email, phone)
  • Research objectives and significance
  • Methodology and experimental design
  • Expected outcomes and potential impact
  • Additional 1-page maximum for budget and its justification as well as timeline of research activities over funding duration
  • CVs of principal investigator(s) and key team members
  • If student investigator, letter from faculty member expressing support and resources (human, space, equipment/supplies)
Submission Instructions

Submit your complete application package via email to phortevoicetherapy@gmail.com with the subject line “PhoRTE® Research Grant Application.”

Evaluation Criteria

A panel of experts will review submissions. Applications will be evaluated on the following areas:

  • Scientific merit
  • Feasibility
  • Innovation
  • Impact on the field
For Additional Information

We look forward to receiving your innovative proposals and supporting groundbreaking research on PhoRTE®. Together, we can make strides in improving voice therapy and enhancing the quality of life for individuals with voice disorders.

For more information about the research grant, application process, or eligibility criteria contact: phortevoicetherapy@gmail.com

2025 Funded Research Grant

Phonation Resistance Training Exercises (PhoRTE®) Delivered In-person and Via Telehealth: A Noninferiority Randomized Clinical Trial

  • Alexandra Chace Purdy, CF-SLP, USC Voice Center
  • Lauren Timmons Sund, CCC-SLP, USC Voice Center
  • M. Eugenia Castro, CCC-SLP, USC Voice Center
  • Dr. Aaron Rothbart, CCC-SLP, USC Otolaryngology – Head and Neck Surgery 
Research Evidence

Research, Publications, and Presentations

 

The first published use of Phonation Resistance Training Exercises (PhoRTE®) was in an article of the ASHA Leader, the bimonthly newsmagazine for and about audiologists, speech-language pathologists, and speech, language and hearing scientists put out by the American Speech-Language-Hearing Association (ASHA). In that same year, Phonation Resistance Training Exercises (PhoRTE®) as a voice therapy program was described in a chapter of a published book for speech-language pathologists.

  • Ziegler, A, & Hapner, E. (2013). The Behavioral Voice-Lift. ASHA Leader. https://leader.pubs.asha.org/doi/10.1044/leader.FTR4.18032013.np
  • Ziegler, A, & Hapner, E. (2013). Phonation Resistance Training Exercises (PhoRTE®) Therapy. In: A. Behrman & J. Haskell (Eds.), Exercises for Voice Therapy (2nd ed.). San Diego: Plural Publishing.
Professional Presentations
  • Ziegler, A. and Hapner, E.R. A Qualitative Study of Expert Opinion on Implementation of Phonation Resistance. The 51st Annual Voice Foundation Anniversary Symposium: Care of the Professional Voice in Philadelphia, PA, June 4, 2022
  • Hapner, E.R., and Ziegler, A. Validation of Phonation Resistance Training Exercises Therapy Utilizing the Theoretical Domains Framework. Fall Voice Conference in San Francisco 7-8 October 2022 http://www.fallvoice.org/2022/conference_details.php
  • Yao, T., Ziegler, A., and Solomon, N. Phonation Resistance Training Exercises (PhoRTE) and Inspiratory Muscle Strength Training with an Older Adult with Presbyphonia. Fall Voice Conference in San Francisco, CA, 7-8 October 2022 http://www.fallvoice.org/2022/conference_details.ph
  • Hapner, E & Ziegler, A. Decision-making in Aging Voice: Where Does PhoRTE Fit. Voice Foundation Annual Symposium, June 4, 2021.https://voicefoundation.org/events/paris-course/
  • Ruddy-Hoffman, B., Ziegler, A., & Hapner, E. Benefits of PhoRTE and Adjuvant EMST in Patients Diagnosed with Presbyphonia: A Case Series. Paper presented at the Fall Voice Conference, Seattle, WA, October 25-27, 2018.http://www.fallvoice.org/2018/conference_details.php
  • Ziegler, A. & Hapner, E. PhoRTE Therapy: Opportunities to Regain the Strength and Restore the Youth of an Aging Voice. Invited workshop at the Voice Foundation’s 43rd Annual Symposium, Philadelphia, PA, May 28-June 1 2014.
Peer-Reviewed Articles
  • Belsky, MA, Shelly, S, Rothenberger, SD, Ziegler, A, Hoffman, B, Hapner, ER, Gartner-Schmidt, JL, & Gillespie, AI. (2023). Phonation Resistance Training Exercises (PhoRTE) With and Without Expiratory Muscle Strength Training (EMST) For Patients With Presbyphonia: A Noninferiority Randomized Clinical Trial. Journal of Voice. https://pubmed.ncbi.nlm.nih.gov/33741235/
  • Ziegler, A, Verdolini Abbott, K, Johns, MM, Klein, A, & Hapner, E. (2014). Preliminary data on two voice therapy interventions in the treatment of presbyphonia. Laryngoscope, 124(8), 1869-1876. https://pubmed.ncbi.nlm.nih.gov/24375313/
Book Chapters
  • Ziegler, A, & Hapner, E. (2019). Phonation Resistance Training Exercises (PhoRTE) as a Treatment for Glottal Insufficiency and Presbyphonia in an Older Female with Age-Related Voice Changes. In J. Stemple & E. Hapner (Eds.), Voice Therapy: Clinical Case Studies (5th ed). San Diego: Plural Publishing, Inc. https://www.pluralpublishing.com/publications/voice-therapy-clinical-case-studies
  • Ziegler, A, & Hapner, E. (2014). Phonation Resistance Training Exercises (PhoRTE) Therapy: Application to the Aging Singer’s Vocal Rehabilitation. In: M. Rosenberg & W. LeBorgne (Eds.), The Vocal Athlete: Application and Technique for the Hybrid Singer. San Diego: Plural Publishing.
  • Ziegler, A, & Hapner, E. (2014). Use of Phonation Resistance Training Exercises (PhoRTE) therapy for an elderly female with presbyphonia. In J. Stemple & E. Hapner (Eds.), Voice Therapy: Clinical Case Studies (4th ed). San Diego: Plural Publishing, Inc.
News Article
Podcast Episode 
  • Porter, LA (Host). (2020, April 27). PhoRTE voice therapy: Revving up the aging voice with Edie Hapner, PhD, CCC-SLP and Aaron Ziegler, PhD, CCC-SLP (Episode 66) [Audio podcast episode]. In Speech Uncensored Podcast. Speechtherapypd.com https://www.speechtherapypd.com/podcasts/SUP
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Dr. Edie Hapner

CCC-SLP, F-ASHA

Dr Hapner, co-developer of PhoRTE Voice Therapy, has been a practicing clinician for over 40 years. She earned a PhD in speech and hearing science from Vanderbilt University in 2003. Dr Hapner was appointed the George W. Barber Jr Foundation Endowed Professor of Otolaryngology at the University of Alabama, Birmingham. She serves as the Co-Director of the UAB Voice Center and the Division Chief of Speech and Hearing in the Department of Otolaryngology at UAB. Dr Hapner is well known internationally for publications and presentations in care of the voice. She championed the voice centric Clinical Fellowship at Emory University in 2004 and has trained over 20 consecutive clinical fellows in voice and upper airway. Dr Hapner is actively involved with the American Speech Language and Hearing Association as a prior Board of Directors Vice President, SIG 3 Coordinating Committee member and Coordinator, and the Co-Chair of the ASHA Annual Convention 2020 and 2022.