Figure 1.

Representative breath showing the detection of the onset and offset of the electromyography activity for the diaphragm/intercostal, parasternal intercostal, sternocleidomastoid and scalene. RMS, root mean square of the electromyography; SCM, sternocleidomastoid. Red lines indicate when the algorithm detected the onset of the electromyography activity for each muscle. Dashed red lines indicate when the algorithm detected the offset of the electromyography activity for each muscle. Green line indicates when the algorithm detected the onset of the inspiratory flow. Dashed green line indicate when the algorithm detected the offset of the inspiratory flow (Sinderby et al., 2013; Estrada et al., 2019).