Department of Gerodontology and Oral Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan.
Division of Gerontology and Gerodontology, Department of Gerodontology and Oral Rehabilitation, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan.
Aging Clin Exp Res. 2020 Dec;32(12):2549-2555. doi: 10.1007/s40520-020-01484-5. Epub 2020 Jan 31.
Aging is associated with a decrease in muscle mass and strength in swallowing muscles, as well as in whole-body muscles. A decrease in tongue pressure (TP) is related with whole-body function, and the trunk, including abdominal and back muscles, forms the core of the body. However, the direct relationship between TP and trunk muscle strength remains unclear.
To clarify the association between back muscle strength, an indicator of trunk muscle strength, and TP in healthy elderly individuals.
In all, 112 healthy community-dwelling individuals aged ≥ 60 years (men: 35, median age 74.0; women: 77, median age 69.0) were included. Body mass index (BMI), TP, and back muscle strength (BMS) were measured. Tooth loss pattern was evaluated by the Eichner classification. Participants were divided into two groups based on the median of the BMS and classified into three groups based on the Eichner index (Eichner A, B, and C). The effects of BMS and occlusal support on TP were analyzed.
In the low BMS group, there was a significant difference in TP between the Eichner B and Eichner C (p = 0.017) groups. However, in the high BMS group, occlusal support did not affect TP. Moreover, the explanatory factors for TP were BMS (β = 0.373, p = 0.001) and the Eichner index (β = 0.190, p = 0.036).
TP was correlated more with BMS than aging and occlusal support in healthy elderly individuals. This study indicated that the clinical evaluation of the whole body is important when assessing oral and swallowing function.
衰老与吞咽肌肉和全身肌肉的肌肉质量和力量下降有关。舌压（TP）的下降与全身功能有关，而躯干，包括腹部和背部肌肉，是身体的核心。然而，TP 与躯干肌肉力量之间的直接关系尚不清楚。
阐明健康老年人背部肌肉力量（躯干肌肉力量的一个指标）与 TP 之间的关系。
共纳入 112 名年龄≥60 岁的健康社区居民（男性 35 名，中位年龄 74.0 岁；女性 77 名，中位年龄 69.0 岁）。测量体重指数（BMI）、TP 和背部肌肉力量（BMS）。通过 Eichner 分类评估牙齿缺失模式。根据 BMS 的中位数将参与者分为两组，并根据 Eichner 指数（Eichner A、B 和 C）将其分为三组。分析 BMS 和咬合支持对 TP 的影响。
在低 BMS 组中，Eichner B 和 Eichner C（p=0.017）组之间的 TP 存在显著差异。然而，在高 BMS 组中，咬合支持并不影响 TP。此外，TP 的解释因素是 BMS（β=0.373，p=0.001）和 Eichner 指数（β=0.190，p=0.036）。
在健康的老年人中，TP 与 BMS 的相关性大于与年龄和咬合支持的相关性。本研究表明，在评估口腔和吞咽功能时，对全身的临床评估很重要。
