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

N/ACompletedNCT04520828

Centre for Interdisciplinary Research in Rehabilitation of Greater Montreal10 enrolled

Overview

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.

Study Type

INTERVENTIONAL

Allocation

Purpose

TREATMENT

Masking

NONE

Enrollment

Conditions

Acquired Dysarthria (Finding)

Interventions

postural repositioningOTHER

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.

Eligibility

Sex: ALLMin age: 18 YearsMax age: 65 YearsHealthy volunteers:

Medical Language ↔ Plain English

\*\*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.

Outcomes

Primary Outcomes

Change in maximum phonation duration

Production of the vowel 'a' as long as possible without running out of air

Time frame: immediately before and after the 10 minute postural repositioning intervention

Secondary Outcomes

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.

Time frame: immediately before postural repositioning intervention

Change in manometry

time prolonged expiration

Time frame: 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

Time frame: immediately before and after the 10 minute postural repositioning intervention

Change in trunk circumference in cm - Post

Time frame: immediately after the 10 minute postural repositioning intervention

Data from ClinicalTrials.gov

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