The Voiced Oral High-frequency Oscillation Technique's Immediate Effect on Individuals With Dysphonic and Normal Voices

Comparação do impacto imediato das técnicas de oscilação oral de alta frequência sonorizada e sopro sonorizado com tubo de ressonância em idosas vocalmente saudáveis

“…To investigate the intensity of vocal symptoms and laryngeal-pharyngeal sensations, an eleven-point numerical scale (0 to 10) was used, in which the elderly had to characterized their intensity sensation of each symptoms, where "0" referred to very low/no intensity and "10" to very high intensity (12,13) . The vocal symptoms and laryngeal-pharyngeal sensations were the same investigated in the SIVD protocol.…”

“…The VOHFO was performed using the New Shaker  device for three minutes (12,13) . The elderly woman performed the technique while sitting in a chair, with an upright posture, breathing normally and keeping neck and shoulders relaxed.…”

“…Many authors of the speech language pathology field have been seeking for new therapy techniques, thus the voiced oral high-frequency oscillation (VOHFO) was proposed (12,13) . This exercise is performed using a device called New Shaker  .…”

“…The authors investigated the VOHFO effects on dysphonic and non-dysphonic individuals and observed that this technique improves the source-filter interaction and can be compared with the semi-occluded vocal tract exercises. Inside the New Shaker  there is a high-density stainless-steel ball supported by a circular cone (14) , when the patient blows into the device, this steel ball vibrates at a frequency of approximately 15 to 30 Hz (Hertz) and this vibration generated more than 70 oscillatory movements per minute in the lung, according to the air flow and the inclination of the device, which will cause air flow and vibration variation through all respiratory system (15) , including the larynx (12) . Therefore, exercises that use this device associated with phonation, can be considered similar to SOVTEs (12,13) .…”

“…Inside the New Shaker  there is a high-density stainless-steel ball supported by a circular cone (14) , when the patient blows into the device, this steel ball vibrates at a frequency of approximately 15 to 30 Hz (Hertz) and this vibration generated more than 70 oscillatory movements per minute in the lung, according to the air flow and the inclination of the device, which will cause air flow and vibration variation through all respiratory system (15) , including the larynx (12) . Therefore, exercises that use this device associated with phonation, can be considered similar to SOVTEs (12,13) . One of this study motivations and hypotheses was that, perhaps, the performance of VOHFO with New Shaker  could be easier for the elderly, considering the muscle conditions of the phonoarticulatory structures with the aging effect.…”