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Authors Suzuki T, Connor NP, Lee K, Leverson G, Ford CN
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Journal Ann. Otol. Rhinol. Laryngol. Volume: 111 Issue: 8 Pages: 684-9
Publish Date 2002 Aug
PubMed ID 12184588

Fatigue and weakness in the elderly are the functional consequences of underlying neuromuscular decline. However, little is known about the manifestations of aging in the larynx. This study evaluated the manner in which laryngeal senescence affects laryngeal-respiratory kinematics by videorecording laryngeal motion in both young and old rats. Recorded images were digitized, and glottal displacement and movement rate were measured. The results indicated that the amplitude of change in glottal angle was significantly diminished, and laryngeal movement durations were prolonged in the old animals. These findings may be due to functional constraints on the respiratory system, impaired laryngeal-respiratory interactions, or decrements in vocal fold tension with age. Because of the serious and pervasive nature of dysphagia and communicative impairments in the elderly, research that specifically examines the manifestations and causes of these impairments is of great importance. Copyright © 2017 The Board of Regents of the University of Wisconsin System