Summary: | <i>Objectives:</i> We aimed to determine the usefulness and effectiveness of a submandibular push exercise with visual feedback from a pressure sensor in patients with dysphagia through continuous exercise sessions. <i>Methods:</i> Twelve patients with dysphagia of various etiologies were included. A total of five exercise sessions (every 3 or 4 days) over three weeks were conducted. During the submandibular push exercise, patients were instructed to maintain a maximum force for 3 s, repeated for 1 min to measure the number of exercises, the maximum pressure, and the area of the pressure-time graph. We statistically compared the values of each exercise trial. <i>Results:</i> Among the 12 patients, eight completed the exercise sessions. As the number of exercise trials increased, the maximum pressure and the area in the pressure-time graph showed a significant increase compared to the previous attempt (<i>p</i> < 0.05). The maximum pressure and the area of the pressure-time graph improved from the first to the fourth session (<i>p</i> < 0.05). The values were maintained after the fourth session, and there was no significant difference between the fourth and the fifth exercise (<i>p</i> > 0.05). There was no significant difference between successful and non-successful groups, except for the Modified Barthel Index (<i>p</i> < 0.05). <i>Conclusion:</i> Through repetitive exercise training, the submandibular push exercise using visual feedback from a pressure sensor can be applied as an exercise method to strengthen swallowing related muscles, such as the suprahyoid and infrahyoid muscles. However, additional studies including more patients and a long-term study period are warranted to evaluate the effects of the exercise for improvement of dysphagia.
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