NCT03692494

The Effects of Adding Expiratory Muscle Strength Training in Voice Therapy

• Status: Withdrawn
• Phase: N/A
• Study type: Interventional
• Enrollment: 0 (actual)
• Sponsor: University of Miami · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

Evaluate if adding expiratory muscle strength training to traditional voice therapy for individuals with dysphonia due to glottal insufficiency improves maximal expiratory pressure, acoustic and aerodynamic measures (i.e. amplitude, maximum phonation time, peak expiratory flow), and voice related quality of life.

Conditions

• Dysphonia
• Unilateral Vocal Cord Paralysis

Interventions

Type	Name	Description
OTHER	Standard of care voice therapy	Exercises will include improved breath coordination, sustained humming and vowels, vocal glides, resonant voice therapy, and relaxation techniques to the neck and shoulder
OTHER	Expiratory muscle strength training (EMST)	EMST150 used at 75% of their maximum expiratory pressure. Participants will be directed to perform 5 sets of 5 breaths, 5 days per week, for 5 weeks, at the pressure threshold established in therapy. Maximum expiratory pressure will then be determined at the beginning of each therapy session and recalibration of the device will be performed if indicated.

Timeline

• Start date: 2025-04-01
• Primary completion: 2026-12-01
• Completion: 2026-12-01
• First posted: 2018-10-02
• Last updated: 2025-02-07

Locations

1 site across 1 country: United States