Oh Jong-Chi, Shin Min-Sook, Son Mo-A, Kim Hyeon-Ji
Department of Occupational Therapy, Cheongju University, Cheongju, Chungcheongbuk-do, Republic of Korea.
Department of Occupational Therapy, Cheongju University, 298 Daesung-ro, Cheongwon-gu, Chungcheongbuk-do, Cheongju, 28503, Chungcheongbuk-do, Republic of Korea.
Dysphagia. 2025 Sep 9. doi: 10.1007/s00455-025-10883-7.
This study examined the effects of vibratory stimulation on swallowing-related muscle strength in patients with dysphagia due to stroke, using three types of stimulators and a systematic exercise program. This study was conducted in two stages. In Experiment 1, we examined the effects of three types of vibratory stimulation on the pressure of the tongue and lips (N = 23). In Experiment 2, the effect of submental vibratory stimulation applied during the effortful swallowing (ES) exercise program-consisting of five sets-on swallowing pressure, was examined (N = 37). Vibratory stimulation was applied to the corresponding muscles for 1 min immediately prior to measuring isometric peak pressure or swallowing pressure of the tongue and lips. In Experiment 1, the electric toothbrush showed a limited increase in strength in two tongue-related variables, while the mini-massager and customized vibratory stimulator showed significant increases in strength in all five variables related to tongue and lip pressure (p < 0.05). In Experiment 2, it was found that vibration applied to the submental area for 1 min before each set of ES exercises, consisting of 10 repetitions, significantly increased oral swallowing pressure. This study shows the following preliminary results, which are encouraging and require replication: vibratory stimulation applied to swallowing-related muscles can significantly increase their strength in the short term. Further research through larger trials is necessary to confirm efficacy, determine optimal stimulation parameters, and evaluate effects on functional swallowing.
本研究使用三种类型的刺激器和一个系统的锻炼计划，考察了振动刺激对中风后吞咽困难患者吞咽相关肌肉力量的影响。本研究分两个阶段进行。在实验1中，我们考察了三种类型的振动刺激对舌头和嘴唇压力的影响（N = 23）。在实验2中，考察了在由五组组成的用力吞咽（ES）锻炼计划期间施加的颏下振动刺激对吞咽压力的影响（N = 37）。在测量舌头和嘴唇的等长峰值压力或吞咽压力之前，立即对相应肌肉施加1分钟的振动刺激。在实验1中，电动牙刷在两个与舌头相关的变量中力量增加有限，而小型按摩器和定制振动刺激器在与舌头和嘴唇压力相关的所有五个变量中力量均显著增加（p < 0.05）。在实验2中，发现在每组由10次重复组成的ES锻炼前1分钟，对颏下区域施加振动，可显著增加口腔吞咽压力。本研究显示了以下初步结果，这些结果令人鼓舞且需要重复验证：对吞咽相关肌肉施加振动刺激可在短期内显著增强其力量。有必要通过更大规模的试验进行进一步研究，以确认疗效、确定最佳刺激参数并评估对功能性吞咽的影响。
