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J Appl Physiol 94: 1735-1743, 2003. First published December 27, 2002; doi:10.1152/japplphysiol.00806.2002
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Vol. 94, Issue 5, 1735-1743, May 2003

Temporal coordination of pharyngeal and laryngeal dynamics with breathing during swallowing: single liquid swallows

Bonnie Martin-Harris1,2,3, Martin B. Brodsky1,4, Christina Clare Price1,2, Yvonne Michel5, and Bobby Walters6

1 Departments of Otolaryngology-Head and Neck Surgery, Medical University of South Carolina Evelyn Trammell Institute for Voice and Swallowing, 2 Department of Communication Science and Disorders, 5 College of Nursing Medical University of South Carolina, and 6 College of Medicine, Medical University of South Carolina, Charleston, South Carolina, 29425; 3 Saint Joseph's Hospital of Atlanta, Evelyn Trammell Voice and Swallowing Center, Atlanta, Georgia 30342; and 4 Department of Communication Science and Disorders, University of Pittsburgh, Pittsburgh, Pennsylvania 15260

The critical integration of timing and patterning between respiratory and swallowing events was studied with simultaneous videofluoroscopic and respiratory recording during single liquid swallows. Respiratory phase patterns and the onsets and durations of 12 predetermined swallowing events and associated respiratory activities were studied. Results showed four highly repeatable, temporally oriented sequences (clusters) of swallowing and related respiratory events. Two respiratory phase patterns were identified without statistically significant differences in frequency of occurrence between age, gender, or race. These findings will aid in the identification of normal and abnormal patterns of breathing and swallowing in patients with dysphagia.

deglutition; larynx; pharynx; respiration; dysphagia


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