Mousavi S Z, Mehri A, Nabavi D, Faraji M, Maroufizadeh S. Comparing the Diadochokinetic Rate in Farsi-Speaking Young and Older Adults. Iranian Rehabilitation Journal 2020; 18 (1) :57-64
URL:
http://irj.uswr.ac.ir/article-1-986-en.html
1- Department of Speech Therapy, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran.
2- Department of Speech Therapy, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran.
3- Department of Speech Therapy, University of Welfare and Rehabilitation Sciences, Tehran, Iran.
4- School of Nursing and Midwifery, Guilan University of Medical Sciences, Rasht, Iran.
Abstract: (7134 Views)
Objectives: Speech Diadochokinesis (DDK) is defined as the ability to produce repetitive and fast speech movements. This study aimed at comparing the DDK rate between Farsi-speaking young and older adults.
Methods: In this study, 244 normal adults (122 males and 122 females) were divided into two groups of young people (20-49 years) and elderly (50-69 years). DDK tasks was performed based on two ways: the participant was asked to produce /pa/,/ta/,/ka/,/pata/,/paka/,/taka/, and /pataka/ sounds in 5 s; and to repeat single syllable sounds (/pa/,/ta/,/ka/) 20 times, two syllables sounds (/pata/,/paka/,/taka/) 15 times, and a three syllables sound (/pataka/) ten times, separately and quickly. The independent T-test, one-way ANOVA, and Pearson correlation were used for data analysis.
Results: The results indicated a significant negative and weak correlation between age and all syllables in the specified time (range: -0.139 to -0.254), and a positive and weak correlation between age and time with respect to the repetition of all syllables (range: 0.121 to 0.245). There was no significant difference between genders in both ways (P>0.05).
Discussion: The results indicated different DDK rate between the young and elderly subjects that can be used as a benchmark for the diagnosis of disabled individuals in producing repetitive and fast oral movements and also as a basis for clinical assessments.
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● Our results found a criterion for assessing the ability to produce oral movements in normal young and elderly subjects.
● It is suggested that education is effective on the DDK rate; however, gender was not found effective.
Plain Language Summary
Oral diadochokinesis rate refers to the ability to produce fast and repetitive movements with vocal organs. The DDK rate can indicate the physiological and structural changes in the central nervous system and the peripheral components of the oral and speech production mechanisms. Therefore, the aim of this study was to compare the DDK rate between Iranian young adults and elderly. The results indicated that the elderly’s diadochokinesis rate was slower than the young people, which can be used for the diagnosis of individuals unable to produce repetitive and fast oral movements and also as a basis for clinical assessments.
Article type:
Original Research Articles |
Subject:
Speech therapy Received: 2019/01/10 | Accepted: 2019/10/5 | Published: 2020/03/1
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