Journal Article Age-related Changes in Geniohyoid Muscle Morphology Predict Reduced Swallowing Function

Baba, Takuro  ,  Goto, Takaharu  ,  Fujimoto, Keiko  ,  Honda, Tsuyoshi  ,  Yagi, Kazutomo  ,  Nagao, Kan  ,  Ichikawa, Tetsuo

30 ( 1 )  , pp.18 - 25 , 2017-06-30 , 四国歯学会
ISSN:21896682
Description
Background: Early detection and treatment to sarcopenia and presbyphagia are needed to address the problems experienced by an aging population. Objective: We aimed to clarify morphological changes in the geniohyoid (GH) muscle and associated aging-related factors, and to examine if changes in the GH muscle predict reduced swallowing function. Materials and Methods: 103 participants (57 women and 46 men, mean age 59.4 ± 19.5 years) were recruited. GH muscle cross-sectional area (CSA) and contraction velocity were measured using ultrasonography. Body height and weight, neck circumference, body mass index, remaining teeth number, occluding teeth number, tongue pressure, and jaw-opening strength were measured. Swallowing function was evaluated using the swallowing screening assessment questionnaire and by measuring swallowing sound duration. Results: GH muscle CSA significantly affected age, gender, body height and weight, neck circumference, remaining teeth number, occluding teeth number, tongue pressure, jaw-opening strength, duration of swallowing sounds, and GH muscle velocity. Covariance structure analysis showed that GH muscle CSA directly influenced swallowing sound duration. Conclusion: Morphological changes in the GH muscle are predictive of decline in swallowing function.
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http://repo.lib.tokushima-u.ac.jp/files/public/11/111064/20180208094930967406/johb_30_1_18.pdf

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