NCT07906028Completed
Effortful Swallow Exercise With Visual Biofeedback for Tongue Strength in Parkinson's Disease
Effects of Iowa Oral Performance Instrument (IOPI) Visual Biofeedback During Effortful Swallow Exercise on Tongue Strength and Endurance, Suprahyoid Muscle Activity, and Swallowing-Related Quality of Life in Individuals With Parkinson's Disease: A Randomized Controlled Trial
Source: ClinicalTrials.gov · Last updated 30 Oct 2026
Brief summary (registry, in English)
The goal of this clinical trial is to learn whether adding visual biofeedback to an effortful swallow exercise program improves tongue strength and swallowing function in adults with Parkinson's disease. The main questions it aims to answer are: * Does effortful swallow exercise with visual biofeedback increase tongue strength and tongue endurance more than the same exercise without visual biofeedback? * Does visual biofeedback lead to greater improvements in swallowing pressure, swallowing muscle activity, swallowing symptoms, and swallowing-related quality of life? Researchers compared two groups that performed the same effortful swallow exercise program. In one group, participants saw real-time feedback on a tongue pressure device (Iowa Oral Performance Instrument, IOPI) showing when they reached their target swallowing effort. In the other group, participants did the same exercises with verbal instructions only and did not see the device display. Participants: * Attended supervised exercise sessions with a speech-language therapist 3 times a week for 4 weeks (12 sessions in total) * Performed repeated hard saliva swallows in each session, with rest breaks between sets * Completed tongue pressure tests, a surface electromyography test of the muscles under the chin, and swallowing questionnaires before the program and within one week after it ended.
- Status (registry)
- Completed
- Study type
- Interventional
- Enrollment
- 35 (actual)
- First submitted
- 21 Oct 2026
- Start date
- Sept 2024
- Primary completion date
- Jun 2025
- Lead sponsor
- Saglik Bilimleri Universitesi
- Diseases
- Parkinson disease
- NCT number
- NCT07906028
What you commit to
- Study type: Interventional
- Participants enrolled: 35
- From Sept 2024 to the primary completion date, Jun 2025
- 1 site in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Prior treatment
- Previous deep brain stimulation
- Speech, language, or swallowing therapy within the previous 6 months
Other illness
- History of head and neck cancer
- Neurological disorder other than idiopathic Parkinson's disease
- Cognitive impairment interfering with understanding study instructions
Other
- Stage 4 or 5 on the Modified Hoehn and Yahr Scale
Who the study is looking for
- Age 18 years or older
- Neurologist-confirmed diagnosis of idiopathic Parkinson's disease
- Stage 1 to 3 on the Modified Hoehn and Yahr Scale
- Montreal Cognitive Assessment (MoCA) score of 21 or higher
- Able to understand and follow study instructions
Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers
Sites (1)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| University of Health Sciences Istanbul Training and Research Hospital Coordinator of this site? Confirm its status | Istanbul | Turkey (Türkiye) | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.