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Dynamics of Pelvic Floor Muscles With Different Phonation Patterns Among Female Students

Dynamics of Pelvic Floor Muscles With Different Phonation Patterns Among Female Students: An Observational Study

Status
Not yet recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT06716268
Enrollment
20
Registered
2024-12-04
Start date
2024-12-03
Completion date
2025-01-10
Last updated
2024-12-04

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

Conditions

Pelvic Floor Dyssynergia, Phonation Disorder

Brief summary

The purpose of the study is to know if there is relation between the dynamics of pelvic floor muscles and different phonation pattern.

Detailed description

Some pelvic floor physical therapists are beginning to experiment with using phonation and vocalization cues to elicit different pelvic floor movements . However, there is a significant gap in the literature about the coordination and movement between the pelvic floor and glottis during speech and phonation, and there is an urgent need to identify the voices accompanied by increasing pelvic floor tone and integrating them into pelvic floor strengthening programs and voices accompanied by lowering pelvic floor tone and integrating them into pelvic floor down-training programs. To date, there has been only one study describing pelvic floor displacement during vocalization tasks. So this study aims to investigate pelvic floor muscle displacement during respiratory and phonatory tasks using trans-abdominal ultrasound to assess respiratory and phonatory tasks that can relax or enhance pelvic floor tone and be integrated into clinical practice.

Interventions

OTHERphonation and respiratory tasks

Participants performed various tasks to evaluate pelvic floor muscle activity and displacement. These included a maximum voluntary contraction (cutting off the flow of urine mid-stream), a pelvic floor strain (bearing down for a bowel movement), and the Valsalva maneuver to clear the Eustachian tubes. Additionally, phonation and respiratory exercises were conducted, such as producing the ah sound at different pitches, open-mouth exhalation, coughing, and semi-occluded vocal tract (SOVT) exercises using a small coffee straw, commonly used in singing warm-ups to enhance vocal efficiency. Each task lasted 3 seconds, with 1-minute rest intervals to assess their impact on pelvic floor displacement

Sponsors

Cairo University
Lead SponsorOTHER

Study design

Observational model
OTHER
Time perspective
CROSS_SECTIONAL

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 24 Years
Healthy volunteers
Yes

Inclusion criteria

\- 1. They should be virgin, healthy female physiotherapy students. 2. They have regular menstruation (3-8 days in duration, with 21-35 days in-between). 3\. Their ages will range from 18 to 25 years old. 4. Their body mass index (BMI) will range from 18 to 24.9 Kg/m2. 5. Their waist- hip ratio will be less than (0.8).

Exclusion criteria

1. Any urological, gynecological, respiratory, or vocal disorders in the previous 12 weeks. 2. Pelvic floor dysfunction. 3. Professionally trained singers. \-

Design outcomes

Primary

MeasureTime frameDescription
Assessment of pelvic floor muscle displacement1 monthPelvic floor displacement during phonation will be assessed using trans-abdominal ultrasound with a 3.5-MHz transducer. Posterior bladder wall displacement will be measured in the sagittal plane with standardized markers at rest and maximal distortion. A bladder filling protocol will ensure imaging clarity. Participants will perform pelvic floor tasks (e.g., contraction, strain, Valsalva) and phonation/respiratory exercises (e.g., ah sounds, coughing, SOVT exercises). Tasks will last 3 seconds, be repeated thrice, and baseline and end measurements will be recorded.

Secondary

MeasureTime frameDescription
Voice pitch classification1 monththe females' voice pitch will be classified by having them read The North Wind and the Sun three times consecutively in a quiet room, using a Samsung Note 20 mobile phone application for recording. The microphone is placed 30 centimeters from their mouths. The application measures average, median, highest (95th percentile), and lowest (95th percentile) frequencies in Hz to provide a comprehensive analysis of voice pitch and volume, aiding in assessing voice quality and potential disorders.

Countries

Egypt

Contacts

Primary ContactNesma A Elhofy, Bs.C
nesma.aziz@cu.edu.eg01015915487
Backup ContactAmira N Abdellattif, PhD

Outcome results

None listed

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