title: Reverse phonation--physiologic and clinical aspects of this speech voice therapy modality.
abstract: Reverse phonation is the voice production during inspiration, accomplished spontaneously in situations such as when a person sighs.
  
  
  OBJECTIVE
  to do a literature review, describing discoveries related to the use of the reverse phonation in the clinical practice, the anatomy and physiology of its production and its effects in vocal treatments; and moreover, indications and problems of the technique for speech disorders treatment and voice enhancement.
  
  
  RESULTS
  there were reports of significant changes in vocal treatment during with the use of reverse phonation: ventricular distention, ventricular folds separation, increase in the fundamental frequency, mucous wave inverse movement; and it also facilitates the dynamic study of the larynx when associated with endoscopy, making it possible to have a better definition of lesion localization in vocal folds superficial lamina propria layers.
  
  
  CONCLUSIONS
  There are few studies describing larynx behavior during reverse phonation and, for this technique to be used in a more precise and objective way, more studies are necessary in order to prove its effectiveness in practical matters.
authors.affiliation: UFSM/RS.
authors.forename: Leila Susana
authors.initials: LS
authors.lastname: Finger
authors.forename: Carla Aparecida
authors.initials: CA
authors.lastname: Cielo
mesh_terms: D006801:Humans; D010699:Phonation / Q000502:physiology*; D013070:Speech Therapy / Q000379:methods*; D014832:Voice Disorders / Q000628:therapy*; D014833:Voice Quality; D014834:Voice Training