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Immediate effect of laryngeal manual therapy in dysphonic individuals.

PURPOSES
To investigate the immediate effect of Laryngeal Manual Therapy (LMT) in musculoskeletal pain, in voice and sensations referred to individuals with behavioral dysphonia and individuals without it.


METHODS
30 individuals ranging from 18 to 45 years old were selected and sorted into two groups: the dysphonic group (DG) - 15 individuals with functional or organofunctional dysphonia, and the control group (CG) - 15 individuals without vocal complaints and with non-impaired voices. The individuals answered a pain questionnaire and their voices were subsequently registered. The initial evaluation was repeated after the LMT. The LMT was applied for 20 minutes. After the LMT, the individuals were self-evaluated in terms of sensations in their voices, larynxes, articulations and respiration.


RESULTS
After the application of LMT, the DG reported significant improvement of pain in the following areas: temporal, larynx, posterior neck, wrists/hands/fingers, upper and lower back, hip/thigh, which did not occur in CG. The perceptual analysis of the vowel /a/ revealed no significant difference in any parameter in both groups after the LMT. The analysis of the speech showed that there was an increase of the roughness parameter after the application of LMT just in the DG. The DG individuals reported better sensations in the larynx and articulations after the submission to LMT, which did not occur in CG.


CONCLUSION
this study clarified that TML immediately reduces the intensity of corporal pain in dysphonic individuals, which did not occur in individuals without any vocal impairments. Although the perceptual analysis reveals an increase of the roughness in the quality of the voice, positive sensation in the larynx and articulation were reported by dysphonic individuals after the application of TML.