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. 2022 Jan 3;12:794598. doi: 10.3389/fphys.2021.794598

Figure 8.

Figure 8

Timing of the diaphragm/intercostal, parasternal intercostal, scalene, and sternocleidomastoid activity during the inspiratory threshold loading. Upper panels are expressed as a percentage of inspiratory time onset based on the pressure signal (%Ti by pressure) whereas lower panels are expressed in seconds from inspiratory onset based on the pressure signal (A) and (D) – EMG, onset; (B) and (E) – EMG, offset; (C) and (F) – Duration of activation. *p < 0.01 for the diaphragm/intercostal vs. parasternal intercostal, scalene and sternocleidomastoid.