Open Access Thesis
The leading cause of death in Parkinson’s disease (PD) is aspiration pneumonia, a negative consequence of swallowing impairment. Approximately 80%, and upward of 95%, of persons with Parkinson’s disease (PwPD) will present with progressive dysphagia, or swallowing impairment. Dysphagia may also lead to dehydration, malnutrition, weight loss, reduced quality of life, hospital readmissions, and high financial burden. Recent evidence suggests swallowing exercise is beneficial for PwPD and there is growing evidence that supports intense programs combining exercises, which may provide sufficient treatment intensity to improve swallowing. The present study investigated whether a four-week Intensive exercise-based Swallowing Program (ISP) combining lingual and respiratory exercises for two PwPD would improve outcomes on multiple probe and endpoint measures of swallowing, respiratory, and vocal functions. Specifically, probes included maximum isometric pressures (MIP) of the tongue, maximum expiratory pressure (MEP), maximum phonation time (MPT), and maximum phonation intensity (MPI). Endpoint measurements consisted of the Mann Assessment of Swallowing Ability (MASA), Timed Water Test (TWT), Repetitive Saliva Swallow Test (RSST), and Swallowing Quality of Life Questionnaire (SWAL-QOL). Post-treatment gains occurred in lingual strength, MEP, and MPI (p < .003) with moderate-to-strong effect sizes. Both MASA scores and TWT swallowing capacity increased, and RSST performance improved to or was maintained within healthy ranges. Neither MPT, an untrained task, nor SWAL-QOL scores significantly changed. Overall, results suggest a positive, synergistic effect of combined treatment modalities evidenced by gains in both swallowing and respiratory systems. Future investigation is warranted to further develop efficacious ISPs for PwPD and to determine their effectiveness to ameliorate the negative consequences of dysphagia.
Year of Submission
Master of Arts
Department of Communication Sciences and Disorders
Dr. Laura Pitts, Chair, Thesis Committee
1 PDF (VIII, 75 Pages)
©2019 Jocelyn Jenks
Jenks, Jocelyn, "Outcomes of an intensive exercise-based swallowing program for persons with Parkinson's disease: A single-case experiment" (2019). Dissertations and Theses @ UNI. 967.
Available for download on Thursday, May 07, 2020