背景:评估吞咽相关肌肉的内部状况以及肌肉力量和大小很重要,因为它们的恶化可能导致吞咽困难。然而,关于使用剪切波弹性成像(SWE)测量的吞咽相关肌肉硬度及其定性特征的报道很少.
目的:我们使用SWE测量了吞咽相关肌肉的硬度,以研究健康成年人的肌肉硬度与身体成分以及其他相关变量之间的关系。
方法:本横断面研究包括30名健康成人。我们使用SWE评估了the舌舌肌(GGM)和舌舌骨肌(GHM)的刚度。骨骼肌质量指数,体重指数(BMI),握力,舌头的压力,测量肌肉的横截面积,我们确定了它们与肌肉僵硬的关系。
结果:对于肌肉僵硬,中间GGM的平均值为7.08±1.92kPa,后GGM为9.31±2.68kPa,GHM为8.84±2.15kPa。在多元回归分析中,以后验GGM的刚度为因变量,BMI(β=-.473,p=.039)是一个显著的负解释变量。然而,以GHM刚度为因变量,BMI(β=.419,p=.033)是一个显著的正解释变量。
结论:后GGM的刚度与BMI呈正相关,GHM的刚度与BMI呈负相关。刚度,使用SWE测量,有可能捕获吞咽相关肌肉的肌内特征,特别是后面的GGM。
BACKGROUND: Assessing the internal condition of
swallowing-related muscles and muscle strength and size is important because their deterioration may lead to dysphagia. However, there are few reports on stiffness of
swallowing-related muscles measured using shear-wave elastography (SWE) and their qualitative characteristics.
OBJECTIVE: We measured stiffness of
swallowing-related muscles using SWE to investigate the relationship between muscle stiffness and body composition as well as other relevant variables in healthy adults.
METHODS: Thirty healthy adults were included in this cross-sectional
study. We evaluated stiffness of the genioglossus muscle (GGM) and geniohyoid muscle (GHM) using SWE. Skeletal muscle mass index, body mass index (BMI), handgrip strength, tongue pressure, and cross-sectional areas of the muscles were measured, and we determined their relationship with muscle stiffness.
RESULTS: For muscle stiffness, the mean value for the middle GGM was 7.08 ± 1.92 kPa, that for the posterior GGM was 9.31 ± 2.68 kPa, and that for the GHM was 8.84 ± 2.15 kPa. In multiple regression analysis, with stiffness of the posterior GGM as the dependent variable, BMI (β = -.473, p = .039) was a significant negative explanatory variable. However, with the GHM stiffness as the dependent variable, BMI (β = .419, p = .033) was a significant positive explanatory variable.
CONCLUSIONS: Stiffness of the posterior GGM was positively correlated with BMI and that of the GHM was negatively correlated with BMI. Stiffness, as measured using SWE, has the potential to capture the intramuscular characteristics of
swallowing-related muscles, particularly the posterior GGM.