Expiratory Muscle Training in Patients with Idiopathic Parkinsonís Disease
A Saleem, C Sapienza, J Rosenbek, B Hoffman-Ruddy, M Okun
Frequently, patients with idiopathic Parkinsonís disease (IPD) have disordered speech.† The speech characteristics of patients with IPD may all stem, in part, from poor respiratory function.† Reduced expiratory muscle strength compromises the necessary lung pressure for speech and may also affect the capability of safe swallowing.† It is the purpose of this study to investigate the activity of an expiratory muscle strength training (EMST) program on the speech and swallowing of patients with IPD.† Ten participants with Idiopathic Parkinsonís Disease (IPD), ages 35-70 years, were recruited among those with moderate disability levels regardless of their sex and minority status. These participants completed a four-week EMST program, 5 days per week. Maximum expiratory pressure (MEP) was the measure of maximum expiratory muscle strength and was obtained at baseline, after each week of training, and after the training was completed.† Maximum expiratory pressure (MEP) values obtained from the subjects at a pre-treatment session were compared to those obtained at a post-treatment session.† In addition, the relationships between MEP values, physiological speech and swallowing measures, speech intelligibility, and subject perception of speech and swallowing changes were investigated.