Swallow Ability Evaluation Method by Lead Time, Geniohyoid Muscle and Thyrohyoid Muscle Estimated Using by Photo Sensors in Swallowing

KURIHARA Yosuke, WATANABE Kajiro, KOBAYASHI Kazuyuki, TANAKA Hiroshi

doi:10.5100/jje.45.110

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Other Title

光センサを用いた嚥下時における先行時間，頤舌骨筋筋力，甲状舌骨筋筋力の推定による嚥下能力評価法
ヒカリセンサオモチイタエンカジニオケルセンコウジカンイゼッコツキンキンリョクコウジョウゼッコツキンキンリョクノスイテイニヨルエンカノウリョクヒョウカホウ

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Description

In the rehabilitation of dysphagia patients, judging the swallow ability and understanding its process are essential. Appropriate rehabilitation policies and dieraty menus can then be selected to prevent aspirations. Currently, however, the swallow ability is mainly judged using large-scale and expensive methods such as video fluoroscopic examination of swallowing, Mesopharynx Fiber, Palatal Pressure Measurements, CT, and Cine MRI, which are difficult to be used in the houses of the patients. This paper proposes a swallow ability judgment system that applies photo sensors, which is handily used at home. As parameters to judge the swallow ability, the lead time, geniohyoid muscle, and thyrohyid muscle are estimated using photo sensors with a little invasiveness. The results of estimation were obtained with the errors of only 12.5%, 19.2%, and 11.6%, for the lead time, the muscle strength of geniohyoid muscle, and the muscle strength of thyrohyoid muscle respectively. Then, we define a estimation equation to calculate the swallow age, which stands for the standard swallow ability corresponding to the age of the patient, to be used as an index to summarily estimate the swallow ability. The result of the estimation of swallow age showed the root mean square error between the calculated values and the actual ages of the patients was 6.89 years.

Journal

The Japanese Journal of Ergonomics

The Japanese Journal of Ergonomics 45 (2), 110-117, 2009

Japan Ergonomics Society

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