title: Determination of laryngeal muscle tension in professional singers.
abstract: In order to study internal laryngeal muscular tension, 60 opera singers were examined. We determined the EGG quasi-open quotient (QOQ) by means of a crescendo singing task. The region between low (QOQ in 'piano') and high vocal intensity (QOQ in 'forte') is called volume of the QOQ. It was revealed that the volume of the QOQ is a reliable indication of the laryngeal muscular tension of the singers. This method reveals the early stages of muscular tension disturbances before objective changes in the larynx are present.
authors.affiliation: Phoniatric Department and Voice Research Laboratory, Krasnoyarsk Opera House and Conservatory, Russia.
authors.forename: S I
authors.initials: SI
authors.lastname: Chernobelsky
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007821:Laryngeal Muscles / Q000502:physiology*; D008297:Male; D008875:Middle Aged; D009129:Muscle Tonus; D014831:Voice / Q000502:physiology*