Effect of expiratory muscle strength training on voice and speech: An exploratory study in persons with Parkinson's disease or multiple sclerosis.
Malin AntonssonKerstin JohanssonAnna Bonde DalemoCornelia Ivehorn AxelssonÅsa BurgeUlrike LesueurLena HarteliusPublished in: International journal of speech-language pathology (2023)
The results of this study support previous evidence that EMST has positive effects on expiratory pressure in persons with PD or MS, but its effect on voice and speech remains unclear. Since subjective reports of the intervention and effects on communication were predominantly positive, further research is needed on larger groups to explore appropriate outcome measures.