This clinical trial aims to determine if a new smartphone-based speech therapy is effective and feasible for patients with post-stroke dysarthria. Participants in the intervention group will use the speech therapy app for 1 hour per day, 5 days per week, over a 4-week period. The control group will receive the same duration and frequency of traditional speech therapy as the intervention group. The study will help us understand if smartphone-based speech therapy is a viable treatment option for post-stroke dysarthria patients.
A total of 76 patients with post-stroke dysarthria will be recruited and stratified by the onset period into acute-subacute (within 6month after index stroke) and chronic (after 6 months after index stroke). Then participants are randomly divided into intervention and control groups. Patients in the intervention group will be instructed to use smartphone-based speech therapy applications, including oro-motor exercise, phonation, articulation, resonance, syllable repetition, and reading exercises. After the baseline evaluation, treatment goals, and contents will be determined with a speech-language pathologist according to the condition of individual patients. Daily sessions will be provided for 1 hour per day, 5 days per week, over a 4-week period. Patients in the control group will be instructed to receive traditional speech therapy. Traditional speech therapy can include face-to-face speech therapy, including oro-motor exercises, reading aloud slowly and clearly, and practicing proper breathing and sustained speech. To maintain the same dose and frequency as the intervention group, 60 minutes of treatment will be performed five days a week (e.g., two days of face-to-face speech therapy per week (60 minutes) + three days of self-training through the reading task workbook (60 minutes). The aim of the study is to establish smartphone-based speech therapy is non-inferior to traditional speech therapy for improving speech intelligibility.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
76
Participants will be instructed to use the speech therapy app for 1 hour per day (5 days for 1 week) over a 4-week period.
Participants will receive treatment maintaining the same frequency as the intervention group.
Ewha Womans University Medical Center
Seoul, Seoul, South Korea
Speech intelligibility
The change in speech intelligibility from baseline to 4 weeks post-intervention will be assessed. Speech intelligibility will be evaluated by having three naive listeners transcribe the participants' recorded speech. These transcriptions will then be compared to the original sentences to calculate a percentage score representing intelligibility. The final intelligibility score will be calculated as the average of the scores from the three naive listeners. A higher percentage indicates greater speech intelligibility.
Time frame: Baseline, 4 weeks
Maximum phonation Time (MPT)
The change in maximum phonation time (MPT) from baseline to 4 weeks post-intervention will be assessed. MPT will be used to assess participants' maximum phonation time. The speech evaluator instructs the patient to take a comfortable breath and then produce the sound /a/ for as long as possible. The task is performed twice, and the maximum duration of the two measurements is used.
Time frame: Baseline, 4 weeks
Oral-diadochokinesis (DDK)
The Oral-diadochokinesis (DDK) change from baseline to 4 weeks post-intervention will be assessed. DDK will be used to assess articulation rate, regularity, and accuracy. Participants are instructed to repeat the syllables /pa/, /ta/, /ka/, and /pataka/ as quickly and accurately as possible. The number of repetitions is divided by the duration of the task.
Time frame: Baseline, 4 weeks
Percentage of Consonants Correct (PCC, %)
The Percentage of Consonants Correct (PCC, %) change from baseline to 4 weeks post-intervention will be assessed. PCC is evaluated as a percentage score calculated from the Urimal Test of Articulation and Phonology 2 (UTAP2).
Time frame: Baseline, 4 weeks
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