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Semin Speech Lang 2017; 38(03): 200-209
DOI: 10.1055/s-0037-1602839
Review Article
Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

Longitudinal Changes in Speech Breathing in Older Adults with and without Parkinson's Disease

Jessica E. Huber
1   Department of Speech, Language, and Hearing Sciences at Purdue University, Purdue University, West Lafayette, Indiana
,
Meghan Darling-White
2   Department of Speech, Language, and Hearing Sciences at University of Arizona, Tucson, Arizona
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Publikationsdatum:
15. Juni 2017 (online)

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Abstract

This longitudinal study examines changes to speech production and speech breathing in older adults with Parkinson's disease (PD) and older adults without PD. Eight participants with PD and eight age- and sex-matched older adults participated in two data collection sessions, separated by 3.7 years on average. Speech severity and speech rate increased for people with PD. Vital capacity decreased for both groups. Older adult control participants displayed significant increases in lung volume initiation and excursion and percent vital capacity expended per syllable. These changes allow older adults to utilize higher recoil pressures to generate subglottal pressure for speech production, potentially reducing work of breathing. Participants with PD displayed significant decreases in lung volume initiation and termination. Thus, unlike older adults, people with PD exert more expiratory muscle pressure during speech production, leading to increased effort. Speech-language pathologists need to consider direct treatment of respiratory patterns for speech to reduce effort and fatigue.

Keywords

Parkinson's disease - aging - respiratory function

Financial Disclosure

This research was funded by the National Institutes of Health, National Institute on Deafness and Other Communication Disorders, grant # 1R03DC05731, a Research Support Incentive Grant from the Center on Aging and the Life Course at Purdue University, and a Summer Faculty Support Grant from Purdue University. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institute on Deafness and Other Communication Disorders, the National Institutes of Health, the Center on Aging and the Life Course, or Purdue University.