| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Outline of Final Research Achievements |
Two-bite Texture Profile Analysis (TPA) according to the National Criteria for Patients with Difficulties in Swallowing was conducted by using gels with similar taste but different textures. Three textural parameters of ‘hardness,’ ‘adhesiveness,’ and ‘cohesiveness’ were obtained from the TPA profiles. In addition, the velocity of the passage of the same gels through the pharynx was measured by the ultrasonic pulse-Doppler method.
Acoustic analysis of sounds during swallowing gels was conducted. The profiles of swallowing sounds of each subject were divided into three parts; time for the closure of epiglottis (t1), time for the flow of bolus (t2), and time for the opening of epiglottis (t3). The parameter t2 tended to decrease as concentration increase, approaching to that of yogurt which is rarely aspirated. In addition, t2 tended to decrease with increase in the “hardness” obtained from TPA tests or the apparent steady viscosity of gel bolus.
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