Abstract
With the increase of senior population, adults in their manhood and senescence with neurogenic defects also increase as well; thus, it is necessary to conduct foundational research on speech fluency to rehabilitate adults with neurogenic language disorders. Thereupon, this study analyzes the characteristics of speech fluency comparatively by age and sex with the subjects of normal adults in their 50`s to 70`s. According to the result of collecting language samples from total 90 adults, 30 (15 males, 15 females) in each age group of the 50`s, 60`s, and 70`s and comparing the speech rate and disfluency frequency, first, adults in their 70`s showed slower speech rate than those in their 50`s or 60`s. And those in their 50`s, 60`s, and 70`s indicated no difference in their speech rate by sex. Second, there was no difference in normal disfluency and total disfluency among the adults in the 50`s, 60`s, and 70`s. Also, there was no difference among the age groups by sex, either. Third, there was no correlation between speech rate of all the age groups and disfluency frequency.
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