title: Detraining outcomes with expiratory muscle strength training in Parkinson disease.
abstract: Expiratory muscle strength training (EMST) is efficacious for improving maximum expiratory pressure (MEP), cough function, and swallowing safety in Parkinson disease (PD). However, there are no published reports describing detraining effects following EMST in persons with PD. Moreover, there are no published reports describing detraining effects following any behavioral swallowing intervention. Ten participants with PD underwent 3 mo of detraining following EMST. Measures of MEP and swallowing safety were made prior to beginning EMST (baseline), posttreatment (predetraining), and 3 mo postdetraining. Participants demonstrated, on average, a 19% improvement in MEP from pre- to post-EMST. Following the 3 mo detraining period, MEP declined by 2% yet remained 17% above the baseline value. No statistically significant changes were found in swallowing safety from post-EMST to postdetraining period. Following the 3 mo detraining period, seven participants demonstrated no change in swallowing safety, one worsened, and two had improvements. This preliminary study highlights the need for the design of maintenance programs to sustain function following intensive periods of training.
authors.affiliation: PO Box 117420, Gainesville, FL 32611. michi81@phhp.ufl.edu.
authors.forename: Michelle S
authors.initials: MS
authors.lastname: Troche
authors.forename: John C
authors.initials: JC
authors.lastname: Rosenbek
authors.forename: Michael S
authors.initials: MS
authors.lastname: Okun
authors.forename: Christine M
authors.initials: CM
authors.lastname: Sapienza
mesh_terms: D000368:Aged; D001945:Breathing Exercises / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D053580:Muscle Strength / Q000502:physiology*; D018908:Muscle Weakness / Q000209:etiology / Q000503:physiopathology / Q000534:rehabilitation*; D010300:Parkinson Disease / Q000150:complications / Q000503:physiopathology / Q000534:rehabilitation*; D012132:Respiratory Muscles / Q000503:physiopathology*; D016037:Single-Blind Method; D016896:Treatment Outcome
keywords: Parkinson disease; airway protection; aspiration; deglutition; detraining; dysphagia; expiratory muscle strength training; maximum expiratory pressure; swallowing; swallowing safety