ERIC Number: EJ1171918
Record Type: Journal
Publication Date: 2018-Feb
Abstractor: As Provided
Lingual Pressure as a Clinical Indicator of Swallowing Function in Parkinson's Disease
Pitts, Laura L.; Morales, Sarah; Stierwalt, Julie A. G.
Journal of Speech, Language, and Hearing Research, v61 n2 p257-265 Feb 2018
Purpose: Swallowing impairment, or dysphagia, is a known contributor to reduced quality of life, pneumonia, and mortality in Parkinson's disease (PD). However, the contribution of tongue dysfunction, specifically inadequate pressure generation, to dysphagia in PD remains unclear. Our purpose was to determine whether lingual pressures in PD are (a) reduced, (b) reflect medication state, or are (c) consistent with self-reported diet and swallowing function. Method: Twenty-eight persons with idiopathic PD (PwPD) and 28 age- and sex-matched controls completed lingual pressure tasks with the Iowa Oral Performance Instrument. PwPD were tested during practically defined ON and OFF dopaminergic medication states. Participants were also stratified into three sex- and age-matched cohorts (7 men, 5 women): (a) controls, (b) PwPD without self-reported dysphagia symptoms or diet restrictions, and (c) PwPD with self-reported dysphagia symptoms with or without diet restrictions. Results: PwPD exhibited reduced tongue strength and used elevated proportions of tongue strength during swallowing compared with controls (p < 0.05) without an effect of medication state (p > 0.05). Reduced tongue strength distinguished PwPD with self-reported dysphagia symptoms from PwPD without reported symptoms or diet restrictions (p = 0.045) and controls (p = 0.002). Conclusion: Tongue strength was significantly reduced in PwPD and did not differ by medication state. Tongue strength differentiated between PwPD with and without self-reported swallowing symptoms. Therefore, measures of tongue strength and swallowing pressures may serve as clinical indicators for further dysphagia evaluation and may promote early diagnosis and management of dysphagia in PD.
Descriptors: Neurological Impairments, Physical Disabilities, Human Body, Physics, Comparative Analysis, Muscular Strength
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A