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Immediate Effects of Postural Repositioning on Voice Production Tasks in Seated Individuals With Acquired Dysarthria:

Immediate Effects of Postural Repositioning on Respiratory and Phonatory Tasks in Seated Individuals With Acquired Dysarthria: a Pilot Study

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04520828
Enrollment
10
Registered
2020-08-20
Start date
2012-06-28
Completion date
2015-07-16
Last updated
2020-08-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Acquired Dysarthria (Finding)

Keywords

acquired dysarthria, corrected seated posture, maximum phonation duration, electromyographic patterns

Brief summary

To determine the effectiveness of a single 10-min postural repositioning session on the maximum phonation duration in individuals with acquired dysarthria.

Detailed description

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.

Interventions

OTHERpostural repositioning

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.

Sponsors

Centre for Interdisciplinary Research in Rehabilitation of Greater Montreal
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

pilot study

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

\*\*Participants with dysarthria Inclusion criteria * sustained a stroke or traumatic brain injury * diagnosed with dysarthria * impaired postural control following a neurological injury * are approaching the end of intensive rehabilitation or have finished intensive rehabilitation * express a desire to participate in the research * have the capacity to read.

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.

Design outcomes

Primary

MeasureTime frameDescription
Change in maximum phonation durationimmediately before and after the 10 minute postural repositioning interventionProduction of the vowel 'a' as long as possible without running out of air

Secondary

MeasureTime frameDescription
Change in trunk circumference in cm - Preimmediately before postural repositioning interventionMeasure 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.
Change in manometryimmediately before and after the 10 minute postural repositioning interventiontime prolonged expiration
Change in EMG activation patternimmediately before and after the 10 minute postural repositioning interventionpattern of electromyographic activity of muscles in the neck and trunk
Change in trunk circumference in cm - Postimmediately after the 10 minute postural repositioning interventionMeasure 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.

Other

MeasureTime frameDescription
Change in the level of satisfaction of participants with their performance assessed using a questionnaireimmediately before and after the 10 minute postural repositioning interventionFollowing 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
Change in the participant's perceived effort to perform the task using a questionnaireimmediately before and after the 10 minute postural repositioning interventionFollowing 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

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026