The Sternohyoid Muscle During Phonation: Electromyographic Studies

Abstract

Electrical activity of the sternoliyoid muscle was studied in three normal male adults and related to phonic functions. The results are summarized as follows: (1) No systematic relationship was found between muscular activity and different vowels. (2) Electrical activity of the sternoliyoid muscle was greater at lower and higher pitches and smaller in the middle range. (3) Electrical activity of the sternoliyoid muscle increased with increasing volume of voice at each pitch.