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undergraduate thesis: Phonatory function under whole-body vibration in different vibratory frequencies and intensities
Title | Phonatory function under whole-body vibration in different vibratory frequencies and intensities |
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Authors | |
Issue Date | 2013 |
Publisher | The University of Hong Kong (Pokfulam, Hong Kong) |
Citation | Wong, N. [王雅恩]. (2013). Phonatory function under whole-body vibration in different vibratory frequencies and intensities. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. |
Abstract | This study investigated phonatory function under whole-body vibration (WBV) in different frequencies and intensities. Twenty non-dysphonic adult volunteers and 2 additional volunteers for the pilot study were recruited for the study. They were exposed to a series of two vibrations: a "test" vibration and a "reference" vibration (set at 10 Hz, 25%) with a 2-s interval in between. The test vibration stimuli were set at 9 vibratory intensities (10% to 50% which varied in 5% steps) and 5 frequencies (5 Hz, 10 Hz, 15 Hz, 20 Hz, 25 Hz) combinations. Perceptual ratings of vibratory magnitude of the larynx and phonatory shakiness were rated using direct magnitude estimation (DME) scaling procedure. A 2 way repeated measures ANCOVA with body mass index (BMI) as a covariate revealed a significant effect of vibratory intensity, but not frequency, on the perceptual rating of phonatory shakiness. The present study revealed that greater phonatory shakiness was perceived at higher intensity level. However, another 2 way repeated measures ANCOVA with BMI as a covariate revealed no significant effect of vibratory intensity and frequency on perceived vibratory magnitude of the larynx. |
Degree | Bachelor of Science in Speech and Hearing Sciences |
Subject | Vibration - Physiological effect Voice |
Dept/Program | Speech and Hearing Sciences |
Persistent Identifier | http://hdl.handle.net/10722/238540 |
HKU Library Item ID | b5806264 |
DC Field | Value | Language |
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dc.contributor.author | Wong, Nga-yan | - |
dc.contributor.author | 王雅恩 | - |
dc.date.accessioned | 2017-02-15T13:04:39Z | - |
dc.date.available | 2017-02-15T13:04:39Z | - |
dc.date.issued | 2013 | - |
dc.identifier.citation | Wong, N. [王雅恩]. (2013). Phonatory function under whole-body vibration in different vibratory frequencies and intensities. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. | - |
dc.identifier.uri | http://hdl.handle.net/10722/238540 | - |
dc.description.abstract | This study investigated phonatory function under whole-body vibration (WBV) in different frequencies and intensities. Twenty non-dysphonic adult volunteers and 2 additional volunteers for the pilot study were recruited for the study. They were exposed to a series of two vibrations: a "test" vibration and a "reference" vibration (set at 10 Hz, 25%) with a 2-s interval in between. The test vibration stimuli were set at 9 vibratory intensities (10% to 50% which varied in 5% steps) and 5 frequencies (5 Hz, 10 Hz, 15 Hz, 20 Hz, 25 Hz) combinations. Perceptual ratings of vibratory magnitude of the larynx and phonatory shakiness were rated using direct magnitude estimation (DME) scaling procedure. A 2 way repeated measures ANCOVA with body mass index (BMI) as a covariate revealed a significant effect of vibratory intensity, but not frequency, on the perceptual rating of phonatory shakiness. The present study revealed that greater phonatory shakiness was perceived at higher intensity level. However, another 2 way repeated measures ANCOVA with BMI as a covariate revealed no significant effect of vibratory intensity and frequency on perceived vibratory magnitude of the larynx. | - |
dc.language | eng | - |
dc.publisher | The University of Hong Kong (Pokfulam, Hong Kong) | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.rights | The author retains all proprietary rights, (such as patent rights) and the right to use in future works. | - |
dc.subject.lcsh | Vibration - Physiological effect | - |
dc.subject.lcsh | Voice | - |
dc.title | Phonatory function under whole-body vibration in different vibratory frequencies and intensities | - |
dc.type | UG_Thesis | - |
dc.identifier.hkul | b5806264 | - |
dc.description.thesisname | Bachelor of Science in Speech and Hearing Sciences | - |
dc.description.thesislevel | Bachelor | - |
dc.description.thesisdiscipline | Speech and Hearing Sciences | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.mmsid | 991020910539703414 | - |