The study of GinsengsPanax effect compared to voice hygiene in vocal fatigue of teachers

Prevalence of voice disorders is very high in teachers and vocal fatigue is the most common of them. It is very common to offer herbal drugs to treat voice disorders. On the other hand; voice hygiene is the first step to treat most voice diseases. We study ginseng’s effect compared to voice hygiene to improve vocal fatigue in teachers. In This study teachers were screened with questionnaires. If each person answered to five of them، she/he was chosen as one of our samples. Samples have been checked with a physician to prevent side effects. We record the samples voices at two times (pre and post intervention). PRRAT software was used for analysis of voices. SPSS software was used for statistical analysis. Reduced signs of fatigue and improved acoustic components are seen. Signs of fatigue fell from 10/28 to 9/28. Average jitter was reduced from 4/14 to 1/28، which shows an improvement in sound. Average shimmer went from 21/87 to 13/53 after voice hygiene was reduced. This reduction shows positive affect on sound. One of the most important improvement indexes is increased harmonic to noise where after the program changed from 98/3 to 77/16، showing a good increase. The findings suggest that the treatment plan based on the voice hygiene is effective on the voice disorder. Probably ginseng consumption will not be effective in improving voice disorders.