Study of vocal therapy efficiency: Comparison of 2 methods

Our objective is to compare the efficiency of 2 methods of vocal therapy. Method A consists of exercises centred on the breath, the vibration and the resonance. Method B associates the principles of the muscular chains (Struyf) and the motor coordination ( Piret-Béziers) with the eutonia of G. Alexander. 11 patients (mean age: 32.9) presenting a functional dysphonia or nodules of the vocal folds were distributed in both groups. We compared their results pre and post therapy (interval: 6 months) at subjective (GRB, VHI) and objective (acoustics and aerodynamics) measures.
We observe an improvement of the post therapeutic measures in both groups (VHI p < 0.005; maximum intensity p < 0.05; intensity range p < 0.05; frequency range p<0.05 and maximum frequency p< 0.05).
We observe an improvement of the post therapeutic measures for the group A for the grade and the roughness on a sustained [a] ( p < 0.05) and for the grade, the roughness and the breathiness on text reading (p < 0.05).
Both methods are equivalent to improve the vocal quality of the dysphonic patients in this study.