Lung Volume Measured During Sequential Swallowing in Healthy Young Adults PurposeOutcomes from studying the coordinative relationship between respiratory and swallow subsystems are inconsistent for sequential swallows, and the lung volume at the initiation of sequential swallowing remains undefined. The first goal of this study was to quantify the lung volume at initiation of sequential swallowing ingestion cycles and to identify ... Article
Article  |   June 01, 2011
Lung Volume Measured During Sequential Swallowing in Healthy Young Adults
 
Author Affiliations & Notes
  • Karen Wheeler Hegland
    Malcom Randall VA Medical Center, Gainesville, FL
    Malcom Randall VA Medical Center, Gainesville, FL
  • Jessica E. Huber
    Purdue University, West Lafayette, IN
    Purdue University, West Lafayette, IN
  • Teresa Pitts
    Malcom Randall VA Medical Center, Gainesville, FL
    Malcom Randall VA Medical Center, Gainesville, FL
  • Paul W. Davenport
    University of Florida, Gainesville, FL
    University of Florida, Gainesville, FL
  • Christine M. Sapienza
    Malcom Randall VA Medical Center, Gainesville, FL
    Malcom Randall VA Medical Center, Gainesville, FL
  • Correspondence to Karen Wheeler Hegland: kwheeler@ufl.edu
  • Editor: Robert Schlauch
    Editor: Robert Schlauch×
  • Associate Editor: David McFarland
    Associate Editor: David McFarland×
Article Information
Swallowing, Dysphagia & Feeding Disorders / Speech
Article   |   June 01, 2011
Lung Volume Measured During Sequential Swallowing in Healthy Young Adults
Journal of Speech, Language, and Hearing Research, June 2011, Vol. 54, 777-786. doi:10.1044/1092-4388(2010/09-0237)
History: Received November 22, 2009 , Revised May 13, 2010 , Accepted October 1, 2010
 
Journal of Speech, Language, and Hearing Research, June 2011, Vol. 54, 777-786. doi:10.1044/1092-4388(2010/09-0237)
History: Received November 22, 2009; Revised May 13, 2010; Accepted October 1, 2010
Web of Science® Times Cited: 9

PurposeOutcomes from studying the coordinative relationship between respiratory and swallow subsystems are inconsistent for sequential swallows, and the lung volume at the initiation of sequential swallowing remains undefined. The first goal of this study was to quantify the lung volume at initiation of sequential swallowing ingestion cycles and to identify the respiratory pattern(s) surrounding each sequential swallow ingestion cycle. The second goal was to compare these results with existing data for single swallows.

MethodTwenty healthy young adults served as participants, 9 males and 11 females, between 19 and 28 years of age (M = 22 years of age). Participants completed 2 trials each of 100 mL of water self-delivered by cup and by straw. Calibrated respiratory inductance plethysmography, surface electromyography, and a contact throat microphone were used to detect respiratory parameters, identify swallow-related muscle contraction, and identify swallowing sounds, respectively.

ResultsSignificantly higher lung volume initiation for trials delivered by straw and more variable respiratory patterns surrounding cup and straw sequential swallowing ingestion cycles existed compared with single swallows.

ConclusionsResults show that as the physiologic demands of swallowing deviate from single, small bolus swallows, the integration of the swallowing and respiratory systems change. This may reflect obligate differences in airway protection strategy and prolonged competition for respiratory resources.

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