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Effect of Inspiratory Muscle Training on Symptom Severity and Quality of Life in Non-Erosive Reflux Disease
Effect of Inspiratory Muscle Training on Clinical Symptom Severity and Quality of Life in Patients With Non-erosive Reflux Disease: A Randomized Controlled Trial
The goal of this clinical trial is to learn if inspiratory muscle training (IMT) works to treat on clinical symptom severity and quality of life in patients with Non-erosive reflux disease (NERD). The main questions it aims to answer are:
Does drug IMT lower the clinical symptom severity ? Does drug IMT improve quality of life? Researchers will compare high intensity IMT to a sham-IMT (a IMT device with no resistance) to see if IMT lower the clinical symptom severity and improve improve quality of life.
Participants will perform the following protocol:
The IMT protocol will consist of home-based high-intensity training using a Threshold IMT device: two sets of 30 breaths with a 1-minute rest, twice daily for 4 weeks. The study group will train at 60% of baseline maximum inspiratory pressure (MIP), with weekly adjustments based on modified Borg scores (4-6), while the control group will perform sham IMT without resistance.
Studie Overzicht
Toestand
Conditie
Interventie / Behandeling
Gedetailleerde beschrijving
Studietype
Inschrijving (Geschat)
Fase
- Niet toepasbaar
Contacten en locaties
Studiecontact
- Naam: Rıdvan Aktan, Assoc Prof.
- Telefoonnummer: +905453318172
- E-mail: ridvanaktan@gmail.com
Studie Contact Back-up
- Naam: Nilay Danış, Assoc Prof.
- Telefoonnummer: +90 2324123704
- E-mail: nilaydanis17@gmail.com
Studie Locaties
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Balçova
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Izmir, Balçova, Turkije (Türkiye), 35330
- Izmir University of Economics
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Contact:
- Rıdvan Aktan, Assoc Prof.
- Telefoonnummer: +902324888579
- E-mail: ridvanaktan@gmail.com
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Onderonderzoeker:
- Nilay Danış, Assoc Prof.
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Onderonderzoeker:
- Caner Bektaş, MD
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
- Volwassen
- Oudere volwassene
Accepteert gezonde vrijwilligers
Beschrijving
Inclusion Criteria:
- A clinical diagnosis of NERD,
- No erosive lesions on endoscopy,
- Presence of reflux symptoms for at least 3 months.
Exclusion Criteria:
- Current use of proton pump inhibitors (PPIs) or failure to complete a minimum 2-week washout period before enrollment.
- With known gastroduodenal ulcers
- Diagnosed with erosive esophagitis
- With hiatal hernia
- With a history of gastrointestinal malignancy
- With infectious or inflammatory gastrointestinal diseases
- With malabsorption syndrome or gastrointestinal obstruction
- With a history of major gastrointestinal surgery (including anti-reflux, gastric, or duodenal surgery)
- With systemic sclerosis or other systemic connective tissue diseases
- With severe cardiovascular, pulmonary, renal, or hepatic disease
- With chronic respiratory diseases such as asthma or COPD
- Having had an acute respiratory tract infection within the past 4 weeks
- With neuromuscular diseases
- With active tuberculosis
- Pregnancy
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Behandeling
- Toewijzing: Gerandomiseerd
- Interventioneel model: Parallelle opdracht
- Masker: Dubbele
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
|---|---|
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Experimenteel: Study Group
Patients who will perform inspiratory muscle training (IMT) with %60 loading
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The IMT protocol will consist of home-based high-intensity daily training - two cycles of 30 breaths with a 1-min rest between sets, twice a day for 8 weeks using an IMT Threshold device (Threshold IMT Philips® Respironics, Inc).
The intensity of the training will be set to 60% of each patient's maximal inspiratory pressure, measured and adjusted weekly based on the modified Borg scale from 4 to 6 regarding respiratory effort performed during the session.
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Sham-vergelijker: Sham Group
Patients who will perform Sham IMT
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Het IMT-protocol zal bestaan uit dagelijkse thuistraining - twee cycli van 30 ademhalingen met een rust van 1 minuut tussen sets, twee keer per dag gedurende 8 weken met behulp van een IMT Threshold-apparaat (Threshold IMT Philips® Respironics, Inc).
De intensiteit van de training wordt ingesteld op de laagste intensiteit van het IMT Threshold-apparaat.
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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Symptom Severity
Tijdsspanne: 4 weeks
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The Reflux Disease Questionnaire (RDQ) will be used to measure the severity of clinical symptoms.
The RDQ is a 12-item self-report scale that assesses the frequency and severity of upper gastrointestinal symptoms over the past week.
Each item is rated on a Likert scale from 0 to 5, and the total score is calculated as the average of the relevant items.
A higher score indicates more severe symptoms.
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4 weeks
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Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Inspiratory Muscle Strength
Tijdsspanne: 4 weeks
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The Inspiratory muscle strength was evaluated by maximum inspiratory pressure which was assessed with a digital mouth pressure meter device (MicroRPM, Micro Medical Ltd., Rochester, Kent, United Kingdom), and recorded in cmH2O (centimeter-water).
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4 weeks
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Gastroesophageal Reflux Disease-Related Quality of Life
Tijdsspanne: 4 weeks
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The Gastroesophageal Reflux Disease Quality of Life Questionnaire (GERD-QOL) will be used.
The questionnaire will be evaluated based on the total score, with a higher score indicating poorer quality of life.
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4 weeks
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Change in Diagnostic Symptom Score
Tijdsspanne: 4 weeks
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The Gastroesophageal Reflux Disease Questionnaire (GERD-Q) will be used to assess changes in diagnostic symptom scores.
A high score indicates severe symptoms.
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4 weeks
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Medewerkers en onderzoekers
Sponsor
Onderzoekers
- Hoofdonderzoeker: Rıdvan Aktan, Assoc Prof., Izmir University of Economics
Publicaties en nuttige links
Algemene publicaties
- Kang H. Sample size determination and power analysis using the G*Power software. J Educ Eval Health Prof. 2021;18:17. doi: 10.3352/jeehp.2021.18.17. Epub 2021 Jul 30.
- Aktan R, Yakit Yesilyurt S, Ozalevli S, Sonbahar AE. Effects of Home-Based, Telerehabilitation-Assisted High-Intensity Inspiratory Muscle Training on Pelvic Floor Muscle Function and Urinary Symptoms in Women with Stress Urinary Incontinence: A Pilot Randomized Controlled Trial. Int Urogynecol J. 2026 Jan 24. doi: 10.1007/s00192-026-06517-7. Online ahead of print.
- Fass R. Proton pump inhibitor failure--what are the therapeutic options? Am J Gastroenterol. 2009 Mar;104 Suppl 2:S33-8. doi: 10.1038/ajg.2009.50.
- Hershcovici T, Fass R. Nonerosive Reflux Disease (NERD) - An Update. J Neurogastroenterol Motil. 2010 Jan;16(1):8-21. doi: 10.5056/jnm.2010.16.1.8. Epub 2010 Jan 31.
Studie record data
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Studie start (Geschat)
Primaire voltooiing (Geschat)
Studie voltooiing (Geschat)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
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Updates van studierecords
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Meer informatie
Termen gerelateerd aan deze studie
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- E-97429853-050.04- 124388
Plan Individuele Deelnemersgegevens (IPD)
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Informatie over medicijnen en apparaten, studiedocumenten
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