Evidence from clinical trials and systematic reviews demonstrates that targeted non-pharmacological interventions, such as inspiratory muscle training and diaphragmatic breathing exercises, can effectively strengthen the lower esophageal sphincter and reduce gastroesophageal reflux symptoms.
The claim is a specific, empirically testable hypothesis about whether the lower esophageal sphincter (LES) can be strengthened through targeted interventions. Multiple retrieved papers—including systematic reviews, clinical trials, and physiological studies—provide consistent evidence supporting the efficacy of respiratory physiotherapy, inspiratory muscle training (IMT), and diaphragmatic resistance training in enhancing LES pressure and function, supporting a 'SUPPORTED' balance verdict.