Oral and vocal fold diadochokinesis in dysphonic women

Abstract

The evaluation of oral and vocal fold diadochokinesis (DDK) in individuals with voice disorders may contribute to the understanding of factors that affect the balanced vocal production. Scientific studies that make use of this assessment tool support the knowledge advance of this area, reflecting the development of more appropriate therapeutic planning.ObjectiveTo compare the results of oral and vocal fold DDK in dysphonic women and in women without vocal disorders. Material and methodsFor this study, 28 voice recordings of women from 19 to 54 years old, diagnosed with dysphonia and submitted to a voice assessment from speech pathologist and otorhinolaryngologist, were used. The control group included 30 nondysphonic women evaluated in prior research from normal adults. The analysis parameters like number and duration of emissions, as well as the regularity of the repetition of syllables "pa", "ta", "ka" and the vowels "a" and "i," were provided by the Advanced Motor Speech Profile program (MSP) Model-5141, version-2.5.2 (KayPentax). The DDK sequence "pataka" was analyzed quantitatively through the Sound Forge 7.0 program, as well as manually with the audio-visual help of sound waves. Average values of oral and vocal fold DDK dysphonic and nondysphonic women were compared using the "t Student" test and were considered significant when p<0.05. ResultsThe findings showed no significant differences between populations; however, the coefficient of variation of period (CvP) and jitter of period (JittP) average of the "ka," "a" and "i" emissions, respectively, were higher in dysphonic women (CvP=10.42%, 12.79%, 12.05%; JittP=2.05%, 6.05%, 3.63%) compared to the control group (CvP=8.86%; 10.95%, 11.20%; JittP=1.82%, 2.98%, 3.15%). ConclusionAlthough the results do not indicate any difficulties in oral and laryngeal motor control in the dysphonic group, the largest instability in vocal fold DDK in the experimental group should be considered, and studies of this ability in individuals with communication disorders must be intensified.

Diadococinesia oral e função mastigatória em idosos saudáveis

“…For analysis purposes, the first two and the last two seconds were excluded, considering the number of emissions performed for four seconds, in the interval from the third to the sixth second. The analysis of monosyllabic emissions was performed by the Motor Speech Profile Advanced Program (MSP), Model 5141, Version: 2.5.2 (KayPentax®), and the sampling rate of 11025 Hz used in the capture adjustment (21,22) . Chart 1 shows the parameters analyzed for monosyllabic emissions.…”

Efeitos da terapia manual laríngea e da estimulação elétrica nervosa transcutânea (TENS) na diadococinesia laríngea em mulheres disfônicas: estudo clínico randomizado

“…Only two studies evaluated oral and laryngeal DDK in individuals with behavioral dysphonia with several types of vocal affections, comparing the diadochokinetic parameters between dysphonic and non-dysphonic individuals (20) , and investigated vocal folds behavior by age groups of men and women with vocal alterations (21) . Thus, it is necessary to conduct further studies in order to verify and characterize the neuromotor behavior of vocal folds in the different mass lesions, as well as the effect of different types of exercises and therapeutic techniques.…”

“…The value used to determine the point was the mean intensity of the DDK sample (DDKava) provided by the MSP program itself during the analysis for each emission (18) - Figure 1. It was determined as standard that the analysis line should be lowered or elevated in order not to compute subpeaks due to possible instabilities in the energy contours produced by the graph (18,20) . The DDK parameters are automatically provided by the MSP program.…”

“…It is defined as the ability to perform fast repetitions of relatively simple patterns composed of oppositional contractions (9) , which may suggest information about individuals' neuromotor integration and maturation (9) . This acoustic evaluation has been used in several cases and populations, such as in children with speech sound disorders (10) , cochlear implants (11) , and fluency disorder (12) , in neurological patients (13)(14)(15)(16) , healthy elderly individuals (17) , youngsters and children (18,19) , as well as in patients with behavioral dysphonia (20,21) . Considering the DDK evaluations in clinical speech-language practice, laryngeal DDK aims to investigate neuromotor control of vocal folds (22) , being used mainly for the assessment of voice disorders (13,15,17,18,20,22) .…”

Supplied Food Consistency and Oral Functions of Institutionalized Elderly

“…Maximum occlusal pressure was evaluated by the Dental Prescale (GC, Tokyo, Japan) [33]. Tongue and labium function was assessed by oral diadochokinesis [34].…”