EFFICACY OF VOCAL FUNCTION EXERCISES AS A METHOD OF IMPROVING VOICE PRODUCTION

Objective voice analysis including acoustic, aerodynamic, and laryngea l videostroboscopic measures demonstrated normal voice in 35 adult wom en. The subjects were then randomly divided into experimental, placebo , and control groups. The experimental group engaged in vocal function exercises. The placebo group engaged in a placebo exercise program. O bjective measures taken after 4 weeks of exercise demonstrated signifi cant changes in phonation volume, flow rate, maximum phonation time, a nd frequency range for the experimental group. No significant changes were noted in the measurements of the control and placebo groups.