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. Author manuscript; available in PMC: 2019 Oct 1.
Published in final edited form as: Lung. 2018 Jun 20;196(5):601–608. doi: 10.1007/s00408-018-0133-7

Figure 2. Examples of swallow occurring during each phase of cough.

Figure 2

(A) Swallow can occur during the transition from the inspiratory phase (light gray rectangle) to the expiratory phase (dark grey rectangles; I-E), (B) in the middle of the expiratory phase (E-E), (C) during the transition from expiration to inspiration (E-I), or (D) in the middle of the inspiratory phase (I-I). Swallow activity (★) is confirmed by coincident activation of the submental complex and absence of airflow. Cough activity ( Inline graphic) is confirmed by sharp increases in airflow. Ribcage excursion demonstrates the ability of swallow to interrupt phases of breathing and coughing.