| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2014: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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| Outline of Final Research Achievements |
The laryngeal high-speed movies during throat clearing (TC) and sustained vowel phonation were analyzed for the angle between the bilateral vocal folds and the angular velocity of the vocal fold adduction. The results showed that the angular velocity accelerated continuously during TC followed by a sudden decrease to zero, whereas the angular velocity once accelerated, and decelerated to zero during vowel phonation. Furthermore, we found that the maximum frequency of the fluctuation of electrographic (EGG) signals observed during the expiratory phase of TC was demonstrated to be moderately correlated with the value of peak expiratory air flow in the whole group consisting of normal subjects and patients with unilateral vocal fold paralysis (UVFP), and that the correlation became stronger in the male-healthy and -UVFP subgroups. These results may allow the development of a new device for real-time monitoring of the cough efficiency during vocal and swallowing rehabilitation.
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