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Indexed/Abstracted in: EMBASE, Scopus
Online ISSN 1827-188X
Plowman E. K. 1, Domer A. 1, Belafsky P. C. 2
1 Department of Communication Sciences and Disorders, University of South Florida, Tampa, FL, USA
2 Center for Voice and Swallowing, University of California, Davis, Sacramento, CA, USA
Swallowing impairment, or dysphagia, is highly prevalent in the aging population. Common sequalea include malnutrition, dehydration, pneumonia, pulmonary abscess, depression, social isolation, and ultimately death. Healthy aging can deleteriously affect central neural mechanisms governing swallowing, peripheral muscle strength and endurance, and upper aerodigestive tract sensation. Collectively, these age-related alterations to the swallowing mechanism of otherwise healthy individuals are termed presbyphagia and functionally equate to a diminished functional reserve, making the older population more susceptible to dysphagia. In addition to the effects of natural aging on deglutitive function, a higher incidence of medical comorbidities and pharmacologic treatments known to adversely affect swallowing contribute to a high prevalence of dysphagia in older adults. As the aging population represents the fastest growing demographic in the world, an advanced understanding of the effects of aging on swallow function is essential for health-care professionals. The purpose of this article is to provide a review of age-related changes in the swallowing mechanism across the lifespan.