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To determine the effectiveness of a single 10-min postural repositioning session on the maximum phonation duration in individuals with acquired dysarthria.
The impact of dysarthria goes beyond communication. However, there have been no clear directives guiding clinical practice to date, and despite increasing evidence directing treatment, research remains limited and predominantly consists of case studies or case series. Despite the importance of postural control in voice production, the effects of postural alignment on speech production efficiency are either little investigated or not at all explored in the dysarthric population. This study determined the effectiveness of a single 10-min postural repositioning session on the maximum phonation duration (MPD) in individuals with acquired dysarthria.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Postural repositioning | Experimental |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| postural repositioning | Other | The 10-min transdisciplinary intervention aimed (1) to facilitate and activate axial extension during standing and then during sitting; (2) to actively mobilize the trunk, cervical spine, and pelvic and shoulder girdles during standing and then during sitting; and (3) to adjust the seated position, as needed, with supports to ensure its maintenance throughout the experiment. Cushion, balls, boxes, or rolls were used to stabilize the final seated position. |
| Measure | Description | Time Frame |
|---|---|---|
| Change in maximum phonation duration | Production of the vowel 'a' as long as possible without running out of air | immediately before and after the 10 minute postural repositioning intervention |
| Measure | Description | Time Frame |
|---|---|---|
| Change in trunk circumference in cm - Pre | Measure of the circumference of the trunk taken at the level of the xyphoid process using a measuring tape when the participants achieves maximal inspiration and maximal expiration. The difference in circumference between maximal inspiration and maximal expiration is subsequently calculated. | immediately before postural repositioning intervention |
| Measure | Description | Time Frame |
|---|---|---|
| Change in the level of satisfaction of participants with their performance assessed using a questionnaire | Following completion of voice tasks, the participants will be asked to grade their perceived level of performance in each posture (before and after the postural repositioning intervention) using the NER-21 scale. The participants are instructed to judge their vocal performance on the performance scale |
**Participants with dysarthria Inclusion criteria
Exclusion criteria
had any cognitive impairment that could prevent them from understanding directives or from expressing their opinion about their posture A neurologist clinically assessed the cognitive function of PWDs
**Control participants
never diagnosed with dysarthria or any other voice impairment
no comorbidities.
no breathing deficits (e.g., asthma, chronic obstructive pulmonary disease)
no pathologies in the spinal cord, spinal column, or thoracic cage that could prevent them from freely moving their trunk
no neurological or cardiac problems.
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| ID | Term |
|---|---|
| D012816 | Signs and Symptoms |
| ID | Term |
|---|---|
| D013568 | Pathological Conditions, Signs and Symptoms |
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pilot study
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|
| Change in manometry | time prolonged expiration | immediately before and after the 10 minute postural repositioning intervention |
| Change in EMG activation pattern | pattern of electromyographic activity of muscles in the neck and trunk | immediately before and after the 10 minute postural repositioning intervention |
| Change in trunk circumference in cm - Post | Measure of the circumference of the trunk taken at the level of the xyphoid process using a measuring tape when the participants achieves maximal inspiration and maximal expiration. The difference in circumference between maximal inspiration and maximal expiration is subsequently calculated. | immediately after the 10 minute postural repositioning intervention |
| immediately before and after the 10 minute postural repositioning intervention |
| Change in the participant's perceived effort to perform the task using a questionnaire | Following completion of voice tasks, the participants will be asked to grade their effort in each posture (before and after the postural repositioning intervention) using the NER-21 scale. The participants are instructed to indicate the effort required to speak on the effort scale | immediately before and after the 10 minute postural repositioning intervention |