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J Appl Physiol (December 27, 2002). doi:10.1152/japplphysiol.00806.2002
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Submitted on September 4, 2002
Accepted on December 19, 2002

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

Bonnie Martin-Harris1*, Martin B Brodsky2, Christina Clare Price3, Yvonne Michel4, and Bobby Walters5

1 Department of Otolaryngology-Head and Neck Surgery, MUSC Evelyn Trammell Institute for Voice and Swallowing, Medical University of South Carolina, Charleston, SC, USA; Department of Communication Science & Disorders, Medical University of South Carolina, Charleston, SC, USA; Evelyn Trammell Voice and Swallowing Center, Saint Joseph's Hospital of Atlanta, Atlanta, GA, USA
2 Department of Otolaryngology-Head and Neck Surgery, MUSC Evelyn Trammell Institute for Voice and Swallowing, Medical University of South Carolina, Charleston, SC, USA; Department of Communication Science & Disorders, University of Pittsburgh, Pittsburgh, PA, USA
3 Department of Otolaryngology-Head and Neck Surgery, MUSC Evelyn Trammell Institute for Voice and Swallowing, Medical University of South Carolina, Charleston, SC, USA; Department of Communication Science & Disorders, Medical University of South Carolina, Charleston, SC, USA
4 College of Nursing, Medical University of South Carolina, Charleston, SC, USA
5 College of Medicine, Medical University of South Carolina, Charleston, SC, USA

* To whom correspondence should be addressed. E-mail: harrisbm{at}musc.edu.

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.




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