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Completed

NCT Number: NCT04520828

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

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

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Key information

Conditions

Acquired Dysarthria (Finding) Pathological Conditions, Signs and Symptoms Signs and Symptoms

Age range

18 year–65 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

About this study

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.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

**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.

Treatment and study plan

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.

Primary outcomes

  1. Change in maximum phonation duration

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

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

Secondary outcomes

  1. Change in trunk circumference in cm - Pre

    Time frame: immediately before postural repositioning intervention

    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.

  2. Change in manometry

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

    time prolonged expiration

  3. Change in EMG activation pattern

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

    pattern of electromyographic activity of muscles in the neck and trunk

  4. Change in trunk circumference in cm - Post

    Time frame: immediately after the 10 minute postural repositioning intervention

    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.

Other outcomes

  1. Change in the level of satisfaction of participants with their performance assessed using a questionnaire

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

    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

  2. Change in the participant's perceived effort to perform the task using a questionnaire

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

    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

Sponsors and collaborators

Lead sponsor

Centre for Interdisciplinary Research in Rehabilitation of Greater Montreal

Other

Registry information

Official study title

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

Important dates

Study start
2012
Primary completion
2015
Study completion
2015
First posted
Aug 20, 2020
Registry last updated
Aug 20, 2020

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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