The study aims to investigate the effectiveness of modified diaphragmatic training compared with standard diaphragmatic training in adults with gastroesophageal reflux disease after covid-19. The design is a single-center in a national respiratory referral center in Indonesia, single-blinded randomized control trial. A central randomization center used computer-generated tables to allocate treatments. The study will involve a randomized controlled trial with a sample size of 50 adult patients with GERD after covid-19. Participants will be randomly assigned to either a modified diaphragmatic training group or a control group.~Four weeks of training with diaphragmatic training followed by modified diaphragmatic training (MDT) or standard diaphragmatic training. Follow-up 30 days
The study titled Effectiveness of Modified Diaphragmatic Training for Improving GERD-Q Score, Diaphragmatic Excursion, Maximum Inspiratory Pressure and Lung Function in Adults With Gastroesophageal Reflux Disease After Covid-19: a Single-blinded Randomized Control Trial is a clinical trial that aimed to investigate the effectiveness of 4 weeks modified diaphragmatic training (MDT) compare with standard diaphragmatic training for improving GERD-Q score, diaphragmatic excursion, maximum inspiratory pressure, and lung function in adults with gastroesophageal reflux disease (GERD) after COVID-19. The trial was single-blinded and randomized, and it included a total of 50 participants. The results of the study showed that MDT was effective in improving GERD-Q score, diaphragmatic excursion, maximum inspiratory pressure, and lung function in adults with GERD after COVID-19.