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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 4. Swallows occurring during the inspiratory phase of cough.

Figure 4

A. demonstrates a consistent lung volume, % vital capacity (VC), throughout the combined stimuli protocol. The LV required to initiate swallow (light grey boxes in both A and B) compared to the LV required to initiate an efficient cough (dark grey boxes in both A and B) is significantly different (B). Average pre swallow inspiration %VC is 48 ± 8 and average pre cough inspiration %VC 66 ± 13, * p < 0.01. Shown are the intergral sEMG traces (∫) filtered, smoothed and rectified. Each airflow and EMG shown are scaled to the same degree.