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. 2009 Sep;107(3):662–669. doi: 10.1152/japplphysiol.00252.2009

Fig. 3.

Fig. 3.

Multiunit EMGs of the parasternal intercostal muscle, external intercostal muscle, and diaphragm during spontaneous breathing (left) and during HF-SCS (right) at comparable inspired volumes. As with spontaneous breathing, HF-SCS results in an asynchronous EMG pattern. This pattern is in marked contrast to the synchronous EMG pattern observed during phrenic nerve stimulation.