Massage-Like Sensation and Tissue Mobilization During Phonation With Two Oscillatory Positive Expiratory Pressure Devices

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dc.coverageDOI: 10.1044/2025_JSLHR-24-00597
dc.creatorGuzman, Marco
dc.creatorQuezada, Camilo
dc.creatorCastro, Christian
dc.creatorCastillo, Monserrat
dc.creatorIbarra, Josefina
dc.creatorVásquez, Melanie
dc.date2025
dc.date.accessioned2025-11-18T19:50:57Z
dc.date.available2025-11-18T19:50:57Z
dc.description<p>Purpose: This study primarily aimed at observing whether high-frequency vibration devices generate tissue mobilization on facial, neck, and chest tissues. An additional objective was to inspect resulting self-perceived sensation of massage-like sensation. Method: Fifty-two participants engaged in a set of three phonatory tasks: (a) phonation with Shaker Medic Plus device, (b) phonation with Acapella Choice device, and (c) sustained vowel [a:] (control task). Self-perceived massage-like sensation was also assessed. All exercises were performed at three loudness levels. Tissue mobilization was captured by four accelerometers placed in four different locations: (a) over the cheek, (b) over the neck, (c) over the thyroid cartilage, and (d) over the suprasternal notch. Frequency, amplitude, and regularity of tissue oscillation were measured. Results: Analyses of variance showed significant second-order interactions for vibration amplitude and frequency. A two-way interaction (Task × Location) was observed for jitter, and no significant interactions were found for shimmer. Selfperceived massage-like sensation results showed that Acapella and Shaker generate almost identical effects, both being significantly higher to the one delivered by vowel [a:]. Conclusion: Both Acapella and Shaker devices are able to mobilize tissues. Tasks, loudness level, and location could produce an effect on tissue oscillation variables. The Acapella device tends to produce a larger amplitude of vibration than the Shaker does. However, self-reported sensation of massage is virtually the same for both devices. Control of dependent variables of tissue oscillation (frequency, amplitude, and regularity) is apparently relevant to obtain the greatest massage-like effect in patients.</p>eng
dc.identifierhttps://investigadores.uandes.cl/en/publications/96543fa0-f122-4735-8cd9-183473a97f54
dc.identifier.urihttps://repositorio.uandes.cl/handle/uandes/56897
dc.languageeng
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.sourcevol.68 (2025) nr.4 p.1758-1772
dc.titleMassage-Like Sensation and Tissue Mobilization During Phonation With Two Oscillatory Positive Expiratory Pressure Deviceseng
dc.typeArticleeng
dc.typeArtículospa
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