This clinical trial aims to determine if a new smartphone-based speech therapy is effective self-treatment method for patients with post-stroke dysarthria. For this study, 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 active control group will receive home-based speech therapy with the same duration and frequency 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.
In this study, 100 patients with post-stroke dysarthria will be recruited and stratified into acute-subacute (within 1 month after index stroke) and chronic (after 6 months after index stroke) groups. Participants will then be randomly assigned to either the intervention or active control group. Patients in the intervention group will use a smartphone-based speech therapy app that includes oro-motor exercise, phonation, articulation, resonance, syllable repetition, and reading exercises. Treatment goals and contents will be determined based on individual patient conditions by a speech-language pathologist after the baseline evaluation. Participants will receive daily sessions for 1 hour per day, 5 days per week, over a 4-week period. Patients in the active control group will receive home-based speech therapy, which includes oro-motor exercises and reading tasks from a workbook, for the same frequency as the intervention group. Both groups will also receive usual stroke care. The study aims to evaluate the efficacy of mobile-based speech therapy compared to home-based speech therapy in improving speech intelligibility scores 4 weeks after baseline for patients with dysarthria in the acute-subacute and chronic phases following stroke.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
100
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.
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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