The present Randomized Control Trial will be a single centric, two arm parallel equivalence randomized controlled. Participants will be assigned to either the Inspiratory MuscleTraining (IMT) group (investigation) or to Sham IMT group (control). The assessment times were three (3) before the start of the program (baseline-T1), immediately after the 3 months of the main exercise program (end of the main program-T2) and 6 months after (end of follow up-T3).
The measurements included: A. By measuring the Maximum Inspiratory Pressure (MIP) (Micro RPM) B. By measuring the Maximum Dynamic Inspiratory Pressure s-index (Powerbrethe K5)
The following instruments were included in the secondary outcome measures:
* Recurrent Gastroesophageal Reflux Disease Questionnaire (measurement of symptom frequency-RDQ Questionaire). * Gastroesophageal Reflux Disease-Related Quality of Life Questionnaire (Quality of Life Measure-Reflux Qual short form questionnaire).
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