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Submitted by: Ma. Royce Chua-Lawas 2021-01-25 03:31:49 Last Updated by: Principe, Jeverly Ann S 2021-01-27 13:48:21


Lip Trill Effects on Vocal Function, Vocal Pitch, and Harmonics-to-Noise Ratio: A Multiple Baseline Study of Three Vocally Healthy Females

PHRR210127-003283

Unspecified

Unspecified

Lip Trill Effects on Vocal Function, Vocal Pitch, and Harmonics-to-Noise Ratio: A Multiple Baseline Study of Three Vocally Healthy Females

Thus, this study aims to investigate whether lip trill can improve the voice after at least 5 sessions of vocal exercises. Three vocally healthy females recruited via Passive Recruitment and passed the inclusion-exclusion criteria will be invited to participate. The participants will undergo lip trill exercises in succession to see if changes in Maximum Phonation Time (MPT), Speaking Fundamental Frequency, Phonation Frequency Range, and Harmonics-to-Noise Ratio will be observed over time. The lip trill protocol of Brockmann-Bauser et al (2019) will be adapted and modified for the study. The participants will be seen on a 3x a week basis for 5 weeks either for a) voice assessment only, or b) vocal training followed by voice assessment. Voice assessment is facilitated by an independent, blinded assessor who must be a Certified Speech Pathologist of the Philippine Association of Speech Pathologists with training in voice assessment and therapy. Assessment procedures include sustained phonation of /a/, pitch glide, and reading a passage, which is estimated to last 8 to 10 minutes. On the other hand, voice training sessions are to be facilitated by the principal investigator and are estimated to last 6 to 8 minutes. Of this, the total cumulative lip trilling performed will be a maximum of 3 minutes only, as recommended by Menezes et al (2005) to avoid vocal discomfort. At the end of 15 sessions, performance will be graphed, and the degree of change will be computed to see if the selected vocal parameters improved over time.

Regime Classification Priority
2017 - 2022 Health resiliency Occupational health and migration
Start Date Duration in Months Target Completion Date Actual Completion Date
2021-02-08 2 2021-04-08 0000-00-00

Ongoing

Institution Classification Region LTO #
University of the Philippines Manila Public Higher Education Institution - State Universities and Colleges Philippines
Institution Region
Self-funded None
Name E-Mail Institution and Institution Address
Ma. Royce Chua-Lawas mrchua2@up.edu.ph 2358 Singalong Street, Malate
Name E-Mail Institution and Institution Address
Ma. Royce Chua-Lawas mrchua2@up.edu.ph 2358 Singalong Street, Malate
Name Expertise Affiliation
Esmerita R Rotor Research College of Allied Medical Professions, University of the Philippines Manila
Ma. Royce Chua Lawas Speech-Language Pathology College of Allied Medical Professions, University of the Philippines Manila
Project Location Institutional Ethics Review Board
College of Allied Medical Professions, University of the Philippines Manila N/A
College of Allied Medical Professions, University of the Philippines Manila N/A

• To investigate the effects of at least 5 sessions of lip trill exercises on the following vocal parameters of 3 vocally healthy females: Maximum Phonation Time (MPT), Speaking Fundamental Frequency, Phonation Frequency Range, and Harmonics-to-Noise Ratio (HNR)

Maximum Phonation Time (MPT), Speaking Fundamental Frequency, Phonation Frequency Range, and Harmonics-to-Noise Ratio (HNR) of the 3 participants

Unspecified

Pending

Clinical Trial

Unspecified

Unspecified

0000-00-00

0000-00-00

3

Unspecified

Unspecified

08 Feb 2021

Inclusion Criteria

  1. Female between 21 to 45 years old;
  2. Can readily perform the lip trill upon screening and stimulability testing;
  3. Has perceptually healthy voice during the assessment day. Perceptual voice evaluation will be done using CAPE-V. Eligible participants must score zero (0) on all vocal parameters;
  4. No oral-motor issues as per Oral Peripheral Mechanism (OPM) Examination;
  5. Unremarkable general health during the assessment day;
  6. Received no formal voice instruction from a singing or voice coach, or not a graduate of a BA Music major in Voice course;
  7. Should be a non-smoker.

 

Exclusion Criteria

  1. Presence of any health condition that would limit the participant’s ability to participate. Any symptom of illness will exclude the prospective participant outright;
  2. If she has history of vocal fold growths (e.g., nodules, etc.) or diagnosis of any neurologic disease;
  3. Does not have the minimum equipment which are vital to the implementation process;
  4. Cannot commit to pre-scheduled online sessions on a thrice-a-week basis;
  5. Situated in a place that has background noise that cannot be significantly reduced or controlled during the assessment such as along the street, beside the market, etc.;
  6. Refusal to give informed consent.

Interventional

Lip Trill

Unspecified

None

Non-Randomized

Single Blind

Unspecified

Single

• To investigate the effects of at least 5 sessions of lip trill exercises on the following vocal parameters of 3 vocally healthy females: Maximum Phonation Time (MPT), Speaking Fundamental Frequency, Phonation Frequency Range, and Harmonics-to-Noise Ratio (HNR)

Phase 0

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